Isekai Tensei, Ore ga Otome ge de Kyuuseishu, Otome Game Transfer, I am the Heroine and the Savior!?, Transferred to another world, but I'm saving the world of an Otome game!?, 乙女ゲー転送、俺がヒロインで救世主!?, 異世界転送、俺が乙女ゲーで救世主?!, Otome Game Tensou, Ore ga Heroine de Kyuuseishu!?, Transferred to another world, but I'm the savior!?
Status: 📖 Ongoing
Ranked: #1,577 (followed by 13,309 users another source)
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.
Summary from Niconico:
Because of his little sister, high school student Tarou (alias) is transferred to an otome game as the heroine. The more he tries to avoid the handsome love interests, the further he advances into their love routes!
In the end, will he be able to return to his original world?!
And will he be able to protect his chastity?!
Now serialized monthly in Shounen Gangan starting Jan 2020.