Twelve-year-old Koichi, who has been separated from his brother Ryunosuke due to his parents' divorce, hears a rumor that the new bullet trains will precipitate a wish-granting miracle when they pass each other at top speed.

Ouran Academy is a prestigious school with most students coming from wealthy families. One of the few students who comes from a modest background is Haruhi Fujioka (Haruna Kawaguchi). Through unexpected circumstances, Haruhi Fujioka ends up joining the male "host club," while hiding her gender. Friendship and love grows between Haruhi Fujioka and the male "host club" members.

16-year-old Haruka lost the people she loved the most in a fire. Haruka is also physically and emotionally wounded from the fire, but she still dreams of becoming a pianist. She takes part in an upcoming competition. Inauspicious incidents then occur around her. Musical student Yosuke, who teaches piano to Haruka, tries to solve the case.