Hoshi no Yuuenchi

A teacher teaches origami to his students, but when he gives a paper crane to a child, it is taken by a classmate known for bullying. The boy finds that the crane is a sentient spacecraft that transports him and others to a celestial amusement park. One girl accidentally falls into a pit leading to a nightmarish space realm, and the group works together to save her. The bully later wakes up unsure if the events were real and gives the crane back to the teacher. The story is created by Daisuke Ikeda, a leader in the Buddhist Soka Gakkai organization, which is part of the shinshuukyou religious movement and often viewed as a cult.