It might be a fantasy manga where the kiss in the library triggers some magical or supernatural event involving the girl.
It could be a fantasy manga where the girl has to deal with the magical consequences of the kissed curse and go on adventures to find a way to break it.
Maybe it's part of the story's unique setting or plot device. Could be that there's some kind of curse or rule preventing it.
It could be due to the story's plot or the girl's personality. Maybe she has some sort of trauma or a rule preventing it.
It could be a drama manga that shows her struggles and how she overcomes the bullying.
It could be a fantasy manga where the girl has a new adventure in a different world after reincarnation.
Maybe it's a drama manga that explores the emotional impact on the girl and her family. Or it could have elements of mystery as they try to figure out who's behind the kidnapping.
It could be a romantic manga with lots of cute moments and challenges they face as a couple.
It could be a romantic drama manga. Maybe the girl goes through a tough breakup and has to find her way back to happiness.
There's a manga called 'Kiss and Wed' where the main plotline involves a girl marrying the guy she shared a kiss with. The story explores their journey from that initial kiss to tying the knot, with lots of ups and downs along the way.
They might have some flirty or teasing moments. Maybe there's a bit of accidental touching or intense eye contact.