Why do the female lead's brothers in shoujo manga never find a girlfriend or wife of their own?

Why do the female lead's brothers in shoujo manga never find a girlfriend or wife of their own?

It’s always the same: the female lead is the youngest and has two to four brothers; she grows up, dates, gets married, and has kids, while her brothers are just there, hovering around her like eternal virgin eunuchs.


If anyone knows the names of any good series that feature side romances involving the brothers, please post them in the comments.
u/No-Caregiver-4836 — 12 hours ago

Azuma has had other boyfriends and, as far as I recall, isn't even a virgin anymore; so why is she playing games with Taira instead of just dating him, seeing as she's already realized she likes him?

u/No-Caregiver-4836 — 1 day ago

Why did Cliff never try a threesome with other girls, considering he knows Elinalise has done it with way more people at the same time?

How can his religion allow him to marry a woman who was sleeping with multiple men at the same time, yet forbid him from sleeping with two girls just once to experiment? What a shitty religion he has.
u/No-Caregiver-4836 — 5 days ago