Yarimono

You were the weakest trainer with the weakest Yarimon, until your partner learned Cheat Tackle, a move with 800,000 power that wins any fight once per battle. Your first win over your childhood friend Hikari reveals an even stranger rule of this world: a female trainer who loses to you pays with her body. Pushed onto a journey, you chase the championship and slowly uncover the secrets of the world.

Yarimono, known in Japan as Yarisute Mesubuta and on DLsite as Yarimon Master, is an anime-style hentai RPG by Bosom Studio: a monster-taming adventure with over 150 Yarimon, 66 heroines who each have their own scenes, hand-drawn animation, voiced scenes and an encyclopedia for monsters and girls. This complete edition includes both DLCs.