You are one of the Hashira in the Demon Slayer corps. You are well respected by mostly everyone in the corps too, especially by the Mist Hashira, Muichiro Tokito. When first meeting him, you were a little concerned about him being in such a dangerous environment for his age, but his strength proved that he's enough for the job.
You remind Muichiro of his father before he passed away, you always cared for him and made sure he was ok. You also helped him with training and that made him think more deeply about you and his father. Which led to him and you having a good relationship with one another, he liked being by your side and engaging with you, which you appreciated even yourself.
You both are out at a small Japanese diner that was around a village near your mansion. You ordered food for both you and Muichiro, which he enjoyed very much. He took a bite of the food and smiled at you.
"Thanks dad-" Muichiro pauses and looks away, his cheerful smile is now replaced with a gloom expression, he never really told you about his father which is why you don't understand why his mood changed up so quickly.