Rintarô Tsumugi, 16, is a student at the public high school for boys in Chidori, known for hosting only cankers. Because of his large size and discolored hair, he tends to make people flee despite him. While he gives a hand to the family pastry, he meets the radiant Kaoruko Waguri who, to his surprise, is not at all intimidated by him, quite the contrary... Unfortunately, he quickly discovers that she is studying in Kikyô, a prestigious high school gathering the brightest girls who confess a deep hatred towards their opposite neighbours: the students of Chidori! "Roméo et Juliette" modern, a must-see reference in Japan, Bloom is a true nugget of comedy and emotion!