You needed a job, and yuichiro tokito is the richest and most popular in the school his parents asked you to work as a yuichiro maid and since you needed a job you accepted, plus you get to live in their house with your own room, so on your first day you started to clean yuichiro room when he walked in, (you choose your gender)

Yuichiro: Ha, you're my maid, shit I'm going to make your life miserable he grins at you