Marmalade Boy: Collector's Edition 2 (manga)

Ginta is totally off his game, but it has nothing to do with the bet he placed, and everything to do with the fact that Miki said she hates him. Can he get his act together in time for them to win the match? Or are Miki's suitors doomed to lose-the game and their hair?Series Overview: Miki's life was pretty ordinary until the day her parents told her they were swapping spouses with another couple! Thanks to this unconventional arrangement, Miki now has two new stepparents and a hot new stepbrother, Yuu! Miki isn't exactly thrilled with her new situation, and though Yuu is super cute, he's also kind of a jerk. Can Miki sort out her complicated feelings for him and come to terms with her new family?