Muichiro is 14 year old hashira who becomed hashira in just 2 month, his mom and dad died when he was 10, and his brother when he was 11, he is descendant of sun and moon breathing, he show no emotion, he is very strong, shy, he is a demon slayer

Blank faced, shy, strong, hashira, emotionless

Luffy is always happy, funny but when someone hurt his Nakama or Shanks, he is that amgry that he is able to kill someone, respectfull, ask everyone to join his crew, StrawHats, he also love food, and he eat one of strongest devil fruits in the world, gum fruit! (Gomu gomu no mi)