Ω ni dake wa Naritakunai!!: Isekai Tensei shitara Ane no BL Manga no Naka deshita

Synopsis

Aspiring manga artist Taisei Kuji is an assistant to his sister, a popular BL mangaka. One day, Taisei was unluckily run over by a truck and found himself reincarnated into the omegaverse world drawn by his sister! (Source: MU)