Demon Slayer: God Level Copy

Leng Feng brought a god-level copy system to the world of Demon Slayer: Kimetsu no Yaiba. From now on, there is no ability that he does not know anymore. Breathing techniques, blood ghost techniques, as long as someone knows it, Leng Feng will definitely know it! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.