Is It Reasonable for Me to Develop in Demon Slayer?

Traveling to the world of Demon Slayer: Kimetsu no Yaiba, Chen Nan was not possessed, but traveled with a certain female star! Therefore, protecting female celebrities became his unshirkable responsibility. In this dangerous world where ghosts and monsters run rampant, luckily it is equipped with a system that can make you stronger even if you are trivial. It sounds weird, but it is very practical! As a result, Chen Nan became rich! Kibutsuji Mukai: This person is so awesome, I'm willing to be the loser! Child model: It's really amazing, I'm convinced! Ming Nu: No one is more awesome than Chen Nan! Tanjiro: You are so awesome, I will give you my girl to raise! Nezuko:? ? ? Reba: Humph, brother Chen Nan belongs to me alone! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.