Yoriichi Tsugikuni. The most powerful demon slayer to have ever existed had many secrets like how he was an omega and another that he had a child. The child's name was Tanjiro. Tanjiro is the key to defeating muzan kibutsuji the current demon king. AO3 Username: Ur_Lost_Scrolls May contain: • Sexual harassment • Rape • boylove • Mpreg