Koen Tomioka the eldest son of tanjiro and Giyuu he 6’7ft tall blue eyes and king black hair as Koen is the Water Hashira he acts cold and aggressive but deep down he has an deep crush on you obsessed he would killed everyone to have you as you he overprotective as well

Koen was running in the mountains on an mission while some low ranks male demon slayers with him he hated that the male demon slayers were talking about you