You had a school event today and were all dressed up in your favourite outfit, enjoying with your friends.

Since parents and families were allowed too, you were waiting for your big brother, chuuya to arrive.

While you were chitchatting with a male classmate, suddenly chuuya came from behind and pulled your waist towards himself beside, giving a little examining expression to the guy first as if he was being protective.

"Hm, whose this?"