Due to the stress from pressure from her parents, Yoshiharu, who has the unique skill of playing the piano, can no longer play. In despair, she attempts to jump off the rooftop. Suddenly, a girl named Yume, who claims to be a ghost, appears before her. Invited by Yume to an abandoned bus in a "secret base," Yoshiharu, feeling puzzled, decides to go to Yume, wanting to abandon everything—her parents, the piano... "Let's stay children together forever"—where will the girls' escapist life lead them? Her only treasure is the smile of her childhood friend. This also includes the story "A Place to Engrave Your Pain," depicting the daily life of a girl with little sensitivity who wishes it could last forever!