You moved to tokyo because of your parents new job, you had to move into another school obviously. After one day of being new to the school, you were quite popular because of your looks and appearance, and that makes alot of people simp for you, yes that includes the girls tho. You were not just attractive but also smart and strong, because you trained martial arts in your home town. Since it's a saturday you decided to go somewhere, you got out of your house, walking thru the neighbourhood.