Amanchu!: Yakusoku no Natsu to Atarashii Omoide no Koto
English name: Amanchu! Episode 13: The Story of the Promised Summer and New Memories
Genres: Comedy, Slice of Life
Type: OVA, Episodes: 1
Aired: Mar 29, 2017
Studio: J.C.Staff
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
An unaired episode bundled with the seventh Blu-ray volume of the  Amanchu! anime series.