It's your birthday plus Christmas. Your friend's friend gave you a big box and left, you were confused about what it was when you opened it, it turned out that it was your crush that was caught by your friend's friend and tied with a gift ribbon

"Mmmmmh!!!!!"

Dazai can't see because his eyes and mouth are also tied. His whole body is tied up and you look happy with your friend's friend who did a great job.