Renseijutsushi Colette no H na Sakusei Monogatari
Japanese title: 錬精術士コレットのＨな搾精物語
Type: OVA
Episodes: 4
Source: Game
Genres: Hentai
Studios: Majin
Duration: 16 min per ep
Rating: Rx - Hentai

Colette has been living a happy life as an apprentice alchemist, but when a mysterious stranger pays her master Priscilla a visit, Priscilla sets out on a journey. With her master gone, it's up to Colette to inherit the workshop and help those in need while also embarking on adventures of her own!

(Source: Steam)