asking for a friend and potentialy me

It's a bl one-shot, 2 characters, the bottom is light haired the top is dark haired. The top calls a bite mark on his neck given to him by the bottom, a collar. the top is obsessed with the bottom and they go to a fireworks show, but the bottom doesn't want his friends to find out that he's gay so he breaks up with the top. He then goes to the top's house in the rain to apologize and they have make up sex. and the end scene, the bottom bites the tops neck and the top calls it a collar. The top says you'll be mine yu chan.