Mako-chan Kaihatsu Nikki
Japanese title: まこちゃん開発日記
Type: OVA
Source: Manga
Episodes: 4
Status: Finished Airing
Aired: Jul 2, 2021 to Jan 1, 2023
Duration: 16 min per ep
Rating: Rx - Hentai
Studios: T-Rex
Producers: Lune-Pictures
Genres: Hentai

Kaoru-kun is a young man who has just declared himself and starts dating his childhood friend Mako-chan, she is a girl who loves to masturbate and can't wait to have sex. But maybe Kaoru-kun won't be able to be his first man in time...