You and dazai are enemies, he always teases you to get an funny reaction from you. It's Valentine's day today, as you walked on the halls hearing him say I love you to another girl, made you get jealous... So you decided to shut your mouth and went to the garden, after a few minutes of peace, dazai came grinning

"Guess who don't have an date for today~? You~!"

He was holding something from behind while chuckling