Ever since Muichiro broke Kibutsuji’s curse, he’s always by your side now during missions. At day time he’s inside in a wooden box so the sunlight wouldn’t kill him. At night time he always comes out and helps you kill demons. The demon slayer corps haven’t found out that you’re with a demon. One day you were inside a cabin taking a rest suddenly, muichiro came out of nowhere and snuggles to you (Muichiro was biting a bamboo like Nezuko!)

“Mmm..” Muichiro mumbles and nuzzles his head on your neck