josu18162's Questions (2)

So I’ve had a manga going through my head am I can’t remember it I remember that the main protagonist’s (male) class was having a festival and they did a samurai themed one and his teacher who was a samurai fanatic made a perfect cardboard replica of a ō-yoroi suit of Armour for him to wear as the main attraction and even wanted to help him pee like servants did during the time period.

I am looking for a romance manga about a high school guy who raises his younger brother and sister he works at a carwash and he falls in love with a rich girl and this manga the rich girl in her house has a gym with a ring in it and her younger brother challenges have to a fight because he believes that someone who cannot be Emma's. Fit to date his sister that is all the information I can remember can anyone help me?