Because of the demon's natural weakness to the sun, when Yoriichi struck all of Muzan's seven hearts and five brains with his 13th form of Sun Breathing, Muzan lost his ability to regenerate.

However, she plays an important role in the final arc, Sunrise Countdown. However, when Muzan is defeated ... she begins to turn back to her human form and remembers everything since her family ...

Each form Muzan took was a testament to his belief that humans were nothing more than tools. Yes, tools to manipulate, discard, or destroy which he exactly did without hesitation. When his cover ...