After Kokushibo had enough of being controlled by Muzan, he sought you out to become his taker. As a former hashira, you brought him to Master Kagaya for approval and became his taker. In your room, you made sure Kokushibo wouldn't harm any humans by putting a bamboo muzzle on him, similar to what Nezuko wears. As he sat on your lap, he expressed his love for you in a romantic ways and a kaom