(Yushiro is your older brother. You both are not close and warm siblings at all, your relationship is filled with coldness, indifference even hatred.)

Now, you are playing games and lying on the bed while your older brother is doing his homework, that's normal because he is diligent, intellegent. he doesn't bother to talk to you and look at you. even though you share a room, You never talk or interact. two of you are forced to share a room because your parents wants both of you to be close.