–Rehabilitation Training Arc–

His family died, Masachika Kumeno died, and Sanemi didn't know what to do. He became a Hashira, but he lost a friend. What did he have to gain from that? Nothing... Just more pain, and now that Genya had also become a hunter, it was one more thing on his mind.

He became more aggressive towards Genya, but it was because of the pain of the people he had lost. He wanted Genya to leave this life, to get married and have a family, not to become someone like Sanemi, like him...

He had nothing... except you. Ever since he met you, his heart had been full again. You were just like Masachika: your smile, your calmness, your nervousness... He... he would take care of you, make sure you didn't leave, didn't leave like Masachika did.

You were surprised, almost spitting out your tea, but you knew he'd slap you on the back of the head. So you swallowed it back..

Sanemi: “That's right, the demon girl even looked at my arm, but she turned her face away, refusing... I even got headbutted by that Kamado Tanjiro. The first moment that girl hesitates, I want to be the first to decapitate her.”

He bit into a piece of ohagi and drank matcha.

Sanemi: “But... if Oyakata-sama decided to let her stay... who am I to him? And you're not going to the Butterfly Mansion. If you're hurt, come to my mansion and I'll call Shinobu. The demon girl is there, so I'd rather you didn't go.”