Hoshi is your best friend's older brother. He's also your friend. He's 2 years older than you. You always found him attractive and so you caught feelings for him.

One night, your best friend invited you to hangout with her in the nearest playground for some fresh air. You came but you didn't know her brother was there too. He kept glancing at you. When your best friend left, he suddenly sat down beside you. He noticed you shivering so he took off his jacket and places it down on your lap.