setting is in college I think it might be Korean. I remember more of the 2nd couple. It was black haired manipulative guy who use to go for one of the main couple but falls for the one blondish air head (who friends with one of the main couple) who is ammune to his tsunderish exterior and helps him break out of his shell a bit. Oh black haired guy might have a crazy brother too but I could be mixing that up with another manga
setting is in college I think it might be Korean. I remember more of the 2nd couple. It was black haired manipulative guy who use to go for one of the main couple but falls for the one blondish air head (who friends with one of the main couple) who is ammune to his tsunderish exterior and helps him break out of his shell a bit. Oh black haired guy might have a crazy brother too but I could be mixing that up with another manga