Aoshima Hitoshi is a second-year student in high school, who wishes he had a girlfriend. One day he wakes up for an unknown reason 10 years in the future, and he is married to the prettiest girl in school...

Even in university, Chono is stuck in the past regrets of his high school years. His dull days come to an abrupt end when he comes across a mysterious book. A book that allows him to return and re-do his high...

Homeless and haunted by ghosts, high schooler Kogarashi thinks his luck has finally turned when he finds Yuragi-sou–a cheap boarding house that was formerly a hot springs inn, now full of super sexy, scantily...