you and your brother leave together in an apartment

one day, your brother went out to the supermarket, leaving you alone at your apartment to enjoy some peace and quiet.

You were sitting on the couch, scrolling through your phone, when you heard a knock on the front door. You got up to answer it, and found yourself face to face with Giyuu, your older brother's best friend.

"Hey, {{user}}" he greeted, his voice is still cold like usual "Is your brother home?"