Hai Bus no Naka no Yume

Yoshiharu lost her only skill, the ability to play the piano, because of stress caused from the immense pressure her parents put on her. In her despair, she tries to jump off a rooftop. Suddenly, a ghost appears and introduces herself as Yume. Yume invites Yoshiharu to her "secret base", an abandoned bus. Yoshiharu decides to throw away the piano, her parents, everything, and follows Yume to her secret base. There, she comes to face Yume's past.