Shouta, a 25-year-old NEET, is mocked by his former female classmates who`ve all become successes, at their class reunion. A mysterious incident at the school pool throws him back in time and lets him deal with those same classmates back when they were fifth grade girls.Note: Bundled with the limited edition of the sixth, eighth and tenth volumes of the manga.
- Other Title: Mujaki no Rakuen, 無邪気の楽園, Paradise of Innocence
- Status: Completed
- Sub/Dub: Anime Sub
- Anime Type: OVA
- Genres: Comedy, Ecchi, Romance, School, Seinen, Harem, Music, Animation, Time Travel, Based On Manga, Aftercreditsstinger, Anime
- Characters: Handa, Shouta, Harukaze, Konomi
- Score: 5.88
- Rank: 10049
- Popularity: 4090
