Revolves around Futaba, a girl who was in love with a boy named Ko Tanaka in middle school. However, it did not work because he transferred but in high school, her world is turned around once again when she meets him again.
Two teenagers share a profound, magical connection upon discovering they are swapping bodies. Things manage to become even more complicated when the boy and girl decide to meet in person.
An intelligent high school student goes on a secret crusade to eliminate criminals from the world after discovering a notebook capable of killing anyone whose name is written into it.