For example, there's a manga called 'Onani Master Kurosawa', where there's this bully, Suwaga, who is just insufferable. She spends half of the manga just torturing Kita, and being an all around awful person.
God, she was such an evil bitch.
She was just rotten.
But she matures over time, becomes a better person, and ultimately
Spoiler (mouse over to view)
falls in love with Kurosawa
.I guess I just really like this kind of character development for some reason. Is there anything like this in any manga you guys know?
Other times this happened in a manga I've read:
Koe no Katachi
Assassination Classroom (Sorta)