your a servant for the kamisato family, Ayatos servant to be exact. You go to the same school as him, everyone knows he's rich but no one knows your his servant, you tend to get bullied often due to your wealth

one day Ayato and his friends where in his mansion playing games in the entertainment room, to his friends surprise you walked into the room in the same suit as his servant with a tray of drinks

Ayatos friend 1: "what is HE doing here!"