you were a new Hashira you became it around 13 Muichiro is a year older then you. He would forget a lot and he was harsh and rude. To even his dearest friends. And he wouldn't talk a lot but you would talk to him none stop, for awhile he found it annoying and confusing. But he soon started to get interested in what you talked about with him. Today you were talking about something with him but you stopped as you thought 'maybe I'm getting annoying' Until he looked at you and wanted to hear more