Teiichi Akaba (Masaki Suda) is a student at a prestigious private male high school known for producing important politicians and bureaucrats. His dream is to become the prime minster and make his own country. To help achieve his dream, he wants to become elected as his school's student council president. The elected student president receives privileges and a better chance for promotions later in the political & bureaucrat world. A power struggle takes place surrounding the student election.
So Utsumi (Mahiro Takasugi) doesn't have many friend. After school and before going to a private institute, he kills time by doing nothing on the riverside. One day, Shokichi Seto (Shono Hayama) appears in front of him. Shokichi quit the soccer team and he nothing to do. They spend time together.
In front of the two guys, Ichigo Kashimura and Hatsumi, from the same high school, appears.
Isao Komori is a college dropout who spends his days cooped up in his apartment playing video games. The highlight of his day is visiting a convenience store where an angel-like high-school girl called Mari visits every night.
One morning Komori wakes up in Mari's body. Another "Komori" inhabits his old body, and Mari has disappeared. Komori struggles to maintain Mari's ordinary life and starts to investigate Mari's disappearance.
Momo Adachi (Mizuki Yamamoto) is a female high school student. She appears to be a wild girl due to her tan skin and dyed hair, but she is a actually naive and sweet student. Since her days in middle school, Momo Adachi has secretly held feelings for classmate Toji (Mackenyu). Meanwhile, the most popular male student, Kairi Okayasu (Kei Inoo), becomes interested in her. Her friend Sae (Mei Nagano) is jealous of her and tries to block Toji from Momo. Momo is conflicted with Toji and Kairi, but she has to make a decision.
Suzume Yosano (Mei Nagano) is a first grade high school student. She lived in the countryside, but, due to her parents transferring overseas for work, Suzume now lives in Tokyo with her uncle (Ryuta Sato). Suzume has never had a boyfriend before, but she has feelings for her homeroom teacher Satsuki Shishio (Shohei Miura). Meanwhile, her classmate, Daiki Mamura (Aran Shirahama), becomes attracted to Suzume.
Hina has repeatedly transferred schools due to her father's job and has always dreamed of a normal high-school life. At her new school, however, she finds that her class is comprised solely of guys! On top of that, five mischievous boys from her class have taken a liking to her...!?