Isekai Hentai Seikatsu! -Tensei Shita Ore wa Shokushu ya Mamono ya Onna no Ko no Pantsu ni Naru! | 異世界変態生活！ ～転生した俺は触手や魔物や女の子のパンツに…なる!～

The main character died in an accident in the present day. You wake up deep in an otherworldly dungeon. Apparently a shapeshifter. It seems that he has been reincarnated as a demon that can transform into anything. Despite the expectations of the demon king and his fellow demons for his power. The person in question was thinking something completely different. ”With this power, you can do all the erotic things to the girls…! Days of erotic mischief by the hero, who has literally turned into a monster of complications, begin.