The Christmas dance party begins, and Mizuki looks for a chance to give Sano a present. Later, Mizuki flies home for New Year's and an unexpected reunion with Gilbert, her first love. Though time has passed and romantic hopes are now focused on Sano, Mizuki discovers that this old flame hasn't been completely snuffed out in her heart.

Sano's little brother Shin returns! Shin has become a rising star of the high jump and he's determined to prove himself by beating his older brother. But that's not the only blood on the track ... the one coaching Shin is their father!

Shin, Izumi, and Kagurazuka compete against each other in the high jump. Then, Sekime gets some attention when he is seen with a strange girl. And, Nakatsu's mother shows up and sweeps the embarrassed teen off his feet.

Mizuki is broke, so she lands a part-time job with Akiha, the photographer. Among her first-day experiences: spilling tea on male diva supermodel "Alex'. This sparks a mutual animosity that is not assuaged when Mizuki discovers the model's most closely guarded secret! Meanwhile, at Mizuki's school, food is disappearing, with the culprits leaving flowers in place of what they've heisted!

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.

Julia confronts Sano to get him to move his relationship with Mizuki along, but Sano has other things to worry about. His brother Shin has run away from home. Then, a photo of Minami, Nakatsu and Sano appears in a girls' fashion magazine and brings the men of Hana-Kimi a lot of new attention.

Mizuki, a girl who disguises herself as a boy at an all-boy school, worries that her cover will be blown if she wins the cross-dressing pageant at the school festival, while Nakatsu, who is unaware that Mizuki is a girl, falls for her.