Sunny Ryoko

Kasumi Kishimoto, 15 years old, is a freshman attending to Meijou High School from her aunt's house, which runs her boarding house. Her life has begun with her natural-blurred aunt and the four unique boarders.

Kasumi gets entangled by cheering team members at Meijou High School. At that time, Yusaku Takasugi, a boarder, appears. Yusaku is a friend who met a naked one in the bath!?

Kasumi and Yusaku Takasugi become classmates. Kasumi says she will join the track and field club, and Yusaku will join that cheering squad. Yusaku wants to support people who work hard!

Yusaku is ordered by the cheerleader Sakamoto to bring Kasumi, but he gets feverish and collapses. Yusaku who saw Kasumi being taken from the health room...

Is Sakamoto, the cheerleader, really bad? He had a cute hairpin labeled "Michiko". It's something strange.

Kodama, the person Sakamoto caused the violence, called Sakamoto again. Kodama seems to be the lover of Michiko Takagi, the owner of the hairpin that Sakamoto had.