Isekai Tensei, Ore ga Otome ge de Kyuuseishu

Isekai Tensei, Ore ga Otome ge de Kyuuseishu Manga

Description:
Started as a two-part oneshot about a guy accidentally transported to an Otome game by his sister. To get out, he needs to clear a love route but he tries his best to find another way. Now it's serialized monthly starting Jan 2020.