The Death Game is a >!battle royale organized by Deus Ex Machina, the God of Time and Space, who is dying and needs a successor.!<

He chooses 12 people and gives each one a different "Future Diary" — a cell phone that can predict the future in a specific way based on the owner's personality. >!The only rule is that the last person alive becomes the new God.!<

To win, it's not enough to just kill — you have to find and destroy the other person's diary, because if their diary is destroyed, they die. >!That's why everyone has to use their diary to predict each other's moves, make alliances, betray each other, and survive!<.

-- Re:Zero — Natsuki Subaru

-- Mushoku Tensei — "Rudeus Greyrat"

-- KonoSuba! — Kazuma Satou

-- Youjo Senki — Tanya Degurechaff

-- Overlord — "Momonga" / "Ainz Ool Gown"

-- That Time I Got Reincarnated as a Slime — Satoru Mikami

-- So I'm a Spider, So What? — Kumoko (not a god for science's sake)

-- Tensei Shitara Dai Nana — Lloyd de Saloum

-- My Next Life as a Villainess: All Routes Lead to Doom! — Katarina Claes

-- In Another World With My Smartphone — Touya Mochizuki

-- The Rising of the Shield Hero — Naofumi Iwatani

-- The Eminence in Shadow — Cid Kagenou

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— Basically, what the post title says, but to be more specific, I'd like to raise questions like: What would each person's diary be like? Or also, "If they all shared the same world, how would everything play out?", "Who would die first, who would survive until the end, or who would be most likely to win?" — questions along those lines. I think it could be interesting to explore them in a scenario where everyone has to kill each other.

-- Clarification: Everyone is from before they were summoned / reincarnated, so they have their original bodies and absolutely no magic or special abilities. For example, Rudeus doesn't have his magic and Subaru doesn't have Return by Death. They are all just humans before their reincarnation.

— That said, this isn't necessarily a versus thread, I just want to know what would happen in this hypothetical scenario after having just finished watching Mirai Nikki.

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— 1st Scenario: They only have their memories pre-isekai.

— 2nd Scenario: They have their post-isekai memories, but their original bodies.

-- E D I T S:

— I forgot about the fucking spider so uhhhh, well, yall can give her a humanoid body ig? I don't know, I haven't watched her series yet, but lowk would be a pain in the ass that your fucking enemy is a spider (who WOULDN'T be able to use a future diary in the first place)