This Boy Suffers from Crystallization

People say that the youthful days are always bittersweet, but maybe it's just bitter? Kyouko Hori is a flashy high school girl, who, despite her ostentatious appearance, excels in academics and has a family-loving character. Izumi Miyamura is a bland high school boy, who, despite not wanting to stand out in class, secretly wears piercings outside of school and has a large body tattoo. One day, Miyamura finds Hori's little brother injured and helps him back to Hori's house, where the relationship between Hori and Miyamura begins with Hori's discovery of Miyamura's secret.

In a rainy spring day, first year high schooler Midori Saezima saw a tall, handsome fellow student took care of a stray kitten. Without knowing the boy's name, she fell in love with him at the first sight. Due to sickness, Midori returned to school three days after summer vacation -- only to find out that she was "volunteered" as a candidate for student council. After a series of embarrassing accidents, both she and the mysterious boy she had a crush on, Akira Sudo, were elected as members of the student council. Being the first student council of this newly established high school, they are about to create "new traditions" for their school and a bittersweet love story for themselves...

The story revolves around Yuuki Kagami, a boy who enrolls in the academy of his dreams as a honors student — and is mistakenly put in the girls' dormitory where boys are prohibited. Faced with the possibility of having to leave the school, Yuuki has to dress up as a girl in the dormitory. On top of things, he ends up rooming with the female teacher Ayana Kakinozaka, who has to watch over him.

Seventeen year old Nakaido Hirosuke is just your average high school student. One morning as he arrives at the train station on his way to school, he catches sight of a beautiful girl, Ajimu Yasuna, and immediately falls for her. The two of them get to know each other and become friends, but he can't confess his feelings and she is unsure of hers. As events and other people present obstacles for the potential couple to clear, their relationship begins to develop and their feelings become clear.