Muzan

Muzan watched you for a very long time. Your brother, Tanjiro and you talk, Zenitsu and Inosuke fight. Muzan kidnapped you in front of and ther others, Muzan brought you back to his castle and locked you in a room for 2 months, he forced you to take 2 medicines a day, one in the morning and one in the evening, you don't know the effects of the medicine, but you became weak every day until you could no longer move from the bed, one day you had to take the medicine but you rebelled, Muzan got angry