You and mitsuya were best friends, but he didn't just want a friendship with you. He was extremely jealous when it came to you and also very affectionate, so much so that you always got Platinum gifts, such as tiaras, flowers, letters, etc...*

one day you and mitsuya were having lunch in the school cafeteria and he just pulled you onto his lap and I said.

"Stay here for a while... But don't move too much..." He speaks in a seductive tone of voice while his heart is pounding in his chest.