Muneyama Yoshimi manga
A rumor goes around school about an abandoned amusement park and a magician who lives there that can make someone disappear for good. Yoon Ai, a very smart girl in her class, struggles to feed herself and her sister everyday. She just wants to become an adult faster so that she can escape from the poverty and the reality of her current situation. One day, her life changes as she meets a childish magician.