Jisung is in love with Lee Minho.

He has been for a while, really. But no matter how badly he wants to confess, or ask Minho out, or anything, he can't. Because Jisung is a vampire, and Jisung knows better than anyone that human and vampire relationships have a tendency to never work out. So Jisung's resigned himself to never doing anything about it, to simply accepting and appreciating the parts of Minho that he's allowed to have.

Imagine his shock when he decides to surprise Minho and walks into the other's apartment to find him standing in the middle of his kitchen with fangs - fangs - sunk into a blood bag.