If i start in a fantasy world and shift to future earth, will this be a problem for my readers?

On planet Avatar, people exchange golden bracelets when they get married. After wedding the couple wears the bracelets every day when they go outside. On Mars and Terra people keep using the pre imperial custom of wedding rings. On cold planet of Leji everyone adopted old goblin custom of exchanging colorful necklaces, which are worn as a marker of married people. Meanwhile on Pluto someone invented marriage tattoos, people put the name of their spouse on their wrists or hands.

So what do people in your setting use to mark their status as married people?

In many Fantasy worlds there are star constellations, just like in real life. But since they have magic, star signs can have actual powers. But what if we go further and make constellations alive species? What role can they play? Do you have any ideas?

[Question/Discussion]

So, a bit of lead up to my question...

Isekai settings are often populated by races/species of different peoples interacting with one another. That's pretty standard for most fantasy settings to immediately sell the idea that this world is different than our world. Relationships between these peoples can range from harmonious to antagonistic to neutral. (Hell, we have enough issues in our world regarding friction between peoples over such things as skin color, nationality, or ideology. Introducing the category of species to the mix would just add more fuel to the fire, but I digress.)

A common trope in isekai is the protagonist interacting with and possibly getting into relationships with people from different species/races. Elves are a common staple though it's nice to see the occasional more muscled race/species get some love too. Sometimes the relationships are monogamous though most of the time they're not in order to sell the fantasy of wanting to feel desired and valued by multiple people of the the surrogate protagonist's preferred gender to boost the protagonist's typically low self-esteem.

Humans with fellow humans - no one bats an eye at. Elves with elves - same thing. Some friction and inherent tragedy comes with the two races/species mingling often due to their differing lifespans. But what about races/species with traits that go beyond just pointy ears? How would that work?

I've enjoyed a good amount of fantasy and occasionally sci-fi media over the years and something always struck me as odd in regards to the different peoples highlighted in their respective series.

How alien is too alien?

Asari from Mass Effect are seen as sex symbols despite their oddly tentacled heads and blue skin. Tribal fantasy races like orcs or beastfolk are often employed to sell the fantasy of their having a primal, passionate hunger despite their physical similarities with animals from our world such as fur or nonhuman teeth.

Is there a line where the potential relationship goes from being intriguingly foreign to just plain uncomfortable?

Not gonna touch the whole loli discourse cause... eww. But what is the line (other than physically presented age for hopefully obvious reasons) for enjoyers of isekai in regards to what relationships they'll accept from a protagonist? Where do you draw the line? Do you go by the Harkness test's rules or have you devised your own for your own brand of personal enjoyment? Is sentience the only factor for you personally?

Are beastfolk considered on a sliding scale of acceptable versus unacceptable traits, like ranging from a bipedal cat to an otherwise normal person with animal ears and a tail? Are orcs with tusks okay but include pig noses and the deal is off? Are harpies off the table due to their commonly lacking conventional hands? Mermaids are often a staple but is the fish tail a deal breaker?

Are there even folk out there who will only accept the protagonist getting into a relationship with humans only?

How do y'all feel about shapeshifters transforming into animals without a human or humanoid top half, but they can still speak human? I just realized i never once thought about if they could do that in my story until today.

Up until today i didn't have a reason for them to talk or not talk in animal form. I would just write they are fighting and then turn back into a human. Example should a weredragon or animal shifter talk in animal form?

Note: yes i know biologically animals (except for parrots and such) could never use human speech because their vocal cords aren't set up like that, but my story just like yallz are magical. So what do yall think? Yay or nay.

Alright this is our world in the planet earth and these are my 2 countries Manjan(red) Frifrenchof(blue) And obviously I have nothing else to do so I want to do Something else different so you guys will decide the fate of this world So comment your ideas and I will create a scenario and And if that scenario happens that means the next comment would be in the same situation What the previous comment done

Races:
Elves
Orcs
Dwarfs
Lizard men
Animal folk
Giants
Fauns
Tieflings
Merfolk
Sirens
Humans
Centaurs
Vampires (extinct)
Fairies
Pixies
Ogres
Trolls
Mushroom folk
Tauruans
Cyclops
Half bloods
Goblins
Gnomes
Dragonborn
Tree folk
Bird folk
Subterraneans
Demons
Angels
Gorgons

Imagine Earth in a trinary instar system.  What are instars, you ask?  Simply put, they are artificially crafted stellar bodies that, exactly like insect larvae molting to different levels before pupating into adults, can shed their old photospheres to make way for smaller, longer-lasting newer ones.  They always spend their first three million years as O2-type blue dwarves and their final ten trillion as M9-type red dwarves.

At the center of this hypothetical solar system is an instar currently on the B0 stage of its life.  Orbiting it from a distance of 1200 astronomical units is a binary system.  One is currently on the F2 stage of its life, the other on the F1 stage.  Orbiting the binary P-style is the hypothetical Earth.

Instead of 365 24-hour days in a year, there are 728 48-hour days in a year, and each season lasts 182 days (or 364 regular days), which suggests an unnaturally circular orbit.

 

In this hypothetical Earth, daylight measures in at 93,000 lux, which is 93 percent as bright as daylight on real Earth.

 

The hypothetical Earth doesn’t have a moon.  Instead, the single instar that the binary orbits is so far away that summer nights are two to three times brighter than a full moon on Earth.  The only difference is that the sky has more of a bluish-violet tinge bordering on indigo.  In the southern hemisphere, the south pole faces away from the binary and sees only the one that the binary orbits.  In essence, south polar winter.  During orbital winter, all three stars can be seen on the sky during the day and all the time at the south pole, thus making it south polar summer.

 

 

Based on the info provided above, some questions follow:

1. Would a faraway star on the night side of the planet still have cycles of quarters and wanes and crescents like our moon?
2. If one hemisphere faces a different star, would it have different dosages of radiation than the other hemisphere?
3. Does the luminosity match the revolution?  In other words, using the specified rotation and revolution, would this hypothetical Earth be orbiting the binary from comfortably within the habitable zone?  Are 1200 astronomical units really enough of a distance for a B-type star to shine as brightly as astronomical twilight?

This kingdom has a system of ministers and nobles meant to handle most routine affairs and leave the monarch free to pursue their grand vision, the trouble is that their new king doesn't have a vision and he's not searching for one either. He's willing to do the bare minimum of a ruler to keep the state running smoothly but no more than that. This lack of direction has frozen local politics since it's unclear which side the King supports.

So how long do you think this state could go on before someone stops waiting for the King and acting on their own?

Power System A Comprehensive Guide to the Magic Mechanism in the Novel's World Capacity — Conduit — Technique: A Hard System Built on Semi-Physical Logic

Introduction: The Philosophy of the System

Power in this world is not a mysterious talent or an ambiguous, ruleless "magical energy." It is a system with strict internal logic, closer to hydraulics (the movement of fluids through pipes) than to any conventional concept of magic. Anyone who understands the three fundamental rules—Capacity, Conduit, and Technique—can logically predict the outcome of any magical encounter, without arbitrary surprises.

"It is not the capacity that kills, but what you can channel out of it."

This principle is the key to understanding everything that follows.

Layer 1: Capacity

Capacity is the absolute ceiling for the magical energy (mana) a person's body can contain. It can be pictured as a "dam" or a "pool" of a fixed, unchangeable size.

How Capacity Is Determined

• Every human is born with latent potential, but it is neither measured nor fully realized until the moment they first cast magic—typically at age 8, via the Crystal Test.
• From that moment on, the maximum capacity ceiling is frozen forever. It never increases, regardless of age or intensity of training.
• Capacity is ranked in ascending tiers: E ← D ← C ← B ← A ← S, followed by rare, exceptional tiers above S.

Static Capacity vs. Current Recovery — Clearing the Confusion

There is a fundamental difference between two entirely distinct concepts:

Concept	Does It Change?	Analogy
Maximum Capacity Ceiling	Fixed for life after age 8	The size of the pool itself
Currently Available Amount	Constantly fluctuates: drops with use, rises with rest	The water level inside the pool

A person can never "expand the size of their pool," but they can always refill it to its original ceiling.

How Available Mana Recovers

• Mana regenerates primarily through rest and sleep.
• Sleep is faster than ordinary rest because the body enters a relaxed state that allows higher absorption of mana from its surroundings.
• There is no shortcut or artificial method to accelerate recovery—only time and rest.

Layer 2: The Conduit

The conduit is the pathway through which mana travels from capacity to the exit point (hands, eyes, or any body part). The conduit is a living organ, not a rigid tool—closer to blood vessels pumping blood than a simple metal pipe.

Possessing a massive capacity without a strong conduit functionally renders one unable to use that capacity effectively. The conduit determines...

The Three Independent Properties of the Conduit

1) Diameter — Determines Speed

The wider the conduit, the shorter the distance a given amount of mana needs to travel to exit, resulting in faster spell execution.

• Example: The same spell (consuming 1,000 mana units) might discharge across 10 cm in a wide conduit (nearly instant), or across 30 cm in a narrow conduit (noticeably slower).
• In combat, this timing gap can decide the outcome—a faster strike lands before the opponent completes their spell.

2) Durability — Determines Endurance

The conduit's material (or "hardness") determines its ability to withstand repeated use or large bursts without sustaining damage.

• A durable conduit ("iron-grade") tolerates a high volume of consecutive attacks and a higher peak burst ceiling.
• A weak conduit ("tin-grade") breaks down rapidly from repetition or overload.
• Exceeding the durability threshold causes real physical damage: pain, internal burns, partial casting paralysis, and potential permanent injury.

3) Continuity — Determines Duration

For continuous-effect spells (such as speed amplification or invisibility), conduit quality determines how long the effect can be maintained before collapsing.

• Example: A strong conduit can maintain a speed boost spell for 30 consecutive seconds, whereas a weak conduit lasts only 10 seconds.
• In retreats or pursuits, this margin can be the sole deciding factor between survival and capture.

Independence of Conduits

Every part of the body has its own completely independent conduit (right hand, left hand, legs, eyes, ears, mouth), even though all connect to the same central capacity.

• A person can specialize by developing a single conduit (e.g., their dominant hand) while neglecting the rest.
• Alternatively, one can pursue balanced distribution: developing multiple conduits evenly, requiring greater total effort and time for each.
• Multiple conduits can be engaged simultaneously for different tasks (e.g., speed boost in the legs + shield in the left hand + attack in the right hand + vision enhancement in the eyes)—though this consumes exponential amounts of capacity.

How a Conduit Is Developed

Phase Zero: Carving the First Pathway

The very first attempt to channel mana through an exit point carves a path where none previously existed—much like a river cutting its channel for the first time. This explains why anyone's first magical attempt in life is slow and weak, regardless of their capacity size.

Hardening Phase

Repeatedly using a skill until feeling mild "discomfort" inside the conduit (not sharp pain)—a signal similar to microscopic muscle tears during weight training.

• Mild discomfort + subsequent rest = natural, healthy growth.
• Immediate sharp pain = exceeding the maximum limit, causing structural damage rather than growth.
• With each cycle (training → discomfort → rest → stronger recovery), conduit durability incrementally increases.

Expansion Phase

Expanding the conduit's diameter itself is a far more difficult and slower process—akin to excavating a tunnel through a mountain: one millimeter at a time, with a real risk of collapse if forced too quickly or aggressively.

• Pain here is an expected part of the process itself, not an immediate warning sign to stop (unlike in hardening).
• It demands refined judgment gained through experience to distinguish between "normal expansion pain" and "imminent collapse."
• It takes long years; thus, it is rarely undertaken except by those with immense drive or abundant time.

The Age Factor

Conduits in physical growth stages (from childhood through early twenties) are far more adaptable to expansion than those of a fully mature adult—a prime age window for intensive training.

Layer 3: Technique Mastery

Technique (spellcasting) is purely cognitive knowledge, entirely separate from capacity and conduit—akin to learning a mathematical formula or a precise physical principle.

• Possessing a massive capacity and a perfect conduit does not grant the ability to cast an unlearned spell.
• As a spell's tier increases (from Tier 1 upward), its cognitive complexity grows, requiring longer time to master intellectually.
• There is no arbitrary "level requirement" restricting tech acquisition—the sole condition is strictly mathematical: does capacity suffice to cover the mana cost?
• If capacity falls short, the knowledge remains purely theoretical with no practical utility—one cannot execute what one lacks the energy to power.

Magic Fusion

Two different elements can be fused into a single attack—e.g., Fire from the right hand + Wind from the left = Flame Tornado.

• Fusion requires sufficiently durable conduits on both active channels, capable of sustaining simultaneous mana discharge long enough for complete synthesis.
• This turns fusion into a rare privilege rather than a simple matter of knowing two separate techniques.

How Power Levels Are Measured

Precise Measurement: The Artifact

A rare, secret artifact reads capacity size with exact, instantaneous precision during the subject's first activation of magic. This method is unavailable to the general public.

Common Measurement: Slow, Costly Trial

Without access to the Artifact, no accurate method exists to discern capacity size. People discover their limits through two methods:

1. By chance during routine training—abruptly hitting an impassable wall without prior intent to test limits.
2. Through calculated risk—learning a high-consumption skill (which may cost months or years of study and substantial wealth), only to discover upon execution that their capacity is insufficient—resulting in a total loss of invested time and resources.

Why Self-Measurement Is Inaccurate

• Attempting to repeatedly cast a low-consumption skill to estimate total capacity hits two obstacles: the conduit breaks down from over-repetition long before capacity depletes, and capacity naturally regenerates during the long testing process, artificially inflating results.
• The only approximate solution: utilizing a high-consumption skill (requiring fewer repetitions and less time)—but this inherently requires a conduit durable enough to withstand it, presupposing years of prior training.

The Core Principle: Why Apparent Power Means Nothing

In this world, there is no reliable visual indicator of true threat level. A person with modest capacity but a flawless conduit (the result of a lifetime of hardening and expansion) can defeat an opponent with a far greater capacity whose conduit has been neglected.

Illustrative Example

A frail old man with modest capacity (Rank C) but possessing the strongest conduit in the city (after 60 years of hardening and expansion) facing off against a muscular youth with massive capacity (Rank S) but an average conduit.

• The youth relies on his vast reserve, launching consecutive attacks backed by abundant energy.
• The old man waits for a single opening, then unleashes his entire modest capacity all at once through his steel-grade conduit—a strike of instantaneous speed and devastating impact.
• Result: The youth falls despite his far superior capacity, because battles are decided not by total reserves, but by the practical ability to convert capacity into a decisive blow at the critical moment.

"Do not judge a man's strength by the shape of his hand, but by the mark of his strike."

Summary Table: The Four Variables

Variable	What It Determines	How It Develops	Is Its Ceiling Changeable?
Capacity	Maximum ceiling for total energy	Does not develop after age 8	Fixed for life
Conduit Diameter	Spell casting speed	Slow expansion taking years ("tunnel digging")	Gradually expandable
Conduit Durability	Consecutive attacks & peak burst limit	Hardening through disciplined repetition ("muscle training")	Gradually expandable
Technique Mastery	Which spells can be executed theoretically	Cognitive study; higher tiers mean higher complexity	Theoretically unlimited (subject to time & instruction)

Summary: The Seven Principles of the System

1. Capacity is permanently locked at age 8 and never increases thereafter.
2. The conduit (not capacity) dictates practical combat ability.
3. Each conduit possesses three independent properties: Diameter (speed), Durability (endurance), and Continuity (effect duration).
4. Every body part has its own independent conduit; one may specialize or pursue balanced distribution.
5. Technique mastery is cognitive knowledge completely distinct from capacity and conduit.
6. Exceeding conduit thresholds causes real physical damage and potential permanent impairment.
7. No accurate measure of true strength exists besides the Artifact—all other methods are approximate and costly.

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I personally am a giant fan of magic that reflects somebody mental state, and I’m not talking about magic that requires a a specific mental state, but magic that is a specific reflection of a characters mental state!

For example one of my characters suffers from War PTSD and instead of just making their magic memory related or related to the war, I made the ability a convoluted Mess that is a amalgamation of all the details in their flashbacks and is soo long that it’s entire process doesn’t even show up, what I mean is that the character can create a bullets, that wen shot into a tree makes flies grow out of the plant, who will fly to any tree’s that have given the original tree there DNA 3 generations back, and if the flies manage to touch the trees in less than 24h the touched plants will slowly move towards their offspring till the make contact, after which they will fuse with them and …….! You get what I mean!

At first I thought this was completely bs, but when I put my mind to it I realise that it perfectly reflex the mind of somebody that is lost in the process of something and is made functionally powerless, because of not being able to take any relevant action!

In my Opinion power systems made in a way that is convenient for the goal that the protagonist wants to reach are worse then the once who are actively hindering the main character, because it forces conflict, and stupid magic is better than sound magic, because humans are fundamentally stupid and it’s easier that way to make your magic system line up with your themes, if they are about humans.

Do you agree?

(Everything I said is my Opinion and will not apply in every case)
(I apologise for my English, it’s not my first language and I wrote this down in e rush)