Otomiya Haine is a 15 years old student at the elite private Imperial Academy (帝国学園 Teikoku Gakuen). , an exclusive school for the children of rich families. The school is socially stratified according to money, and Haine is near the very bottom of the lowest stratum. To complicate matters, she has set her heart on the highest-ranking student, Tougu Shizumasa, the student council's president. As impossible as the odds may seem, Haine-chan's innate optimism keeps her going, as she pursues her love.

This story is about Haine Otomiya, a 15-year-old high school girl student at the elite private Imperial Academy (帝国学園 Teikoku Gakuen). Apparently sold to foster parents for fifty million yen, and a one-time gang member, Haine reformed when she met Shizumasa Tōgū, who told her to live life how she wanted to. She fell in love with Shizumasa and entered the Imperial Academy to chase after him.

Now, Shizumasa is the Koutei (皇帝, Kōtei, lit.emporer) of the school. Being the president of the student council and the only member of the gold class, he is the one who everyone looks up to. Through various circumstances Haine is tricked by one of the student council members into becoming his bodyguard and joining the student council. However, Shizumasa claims not to know her and is unexpectedly cold towards her.