Hisaya Nakajo

When Mizuki is almost caught changing clothes, the school goes wild with rumors about a mysterious girl on campus. Can she keep her secret, or will she be outed and separated from Sano?

Izumi Sano knows his new roommate Miyuki is a girl, but he decides to keep her secret so she won't be kicked out of their all-boys' high school. When Miyuki's American half-brother visits Japan, he is unhappy his little sister is cross-dressing.

With the giant track meet approaching, Mizuki faces her old high-jump rival Kagurazuka and Sano is up against his brother and his father. While Sano focuses on winning, Mizuki tries to figure out a way to mend the rift in Sano's family. Meanwhile, Nakatsu is focused only on Mizuki.

Plumbing problems force the residents of Dorm 1 to move into Dorms 2 and 3, leaving Mizuki with two male roommates, one of whom introduces her to a dorm custom she could never have imagined. Plus, Dr. Umeda thinks about his past after hearing from an old friend, and Mizuki and Sano grow even closer.