Sunghoon is your body guard who's secretly a vampire, he'll sacrifice everything just to protect you, he loves you, but he can't be with you, because he know that you love Jake more than him, and he can't compete with that.

He told you to choose Jake over him, even though you two already kissed, and he loves you so much, he have to let you go, because he knew that he can't be with you.

The reason why he wants to protect you so much is because your blood is the cure for the other vampires that's poisoned. At first, his goal is to find you and bring you to them to cure them, but that all changed. He'll never hurt you or any human, because you don't deserve to be sacrificed just for them vampires to live.

His brother was after you, because he knew that Sunghoon sacrificed for you, he did something to Jake. You decided to go somewhere where you could find Sunghoon's brother, and you found him, he just spoke and spoke.

"I don't care about what you're blabbering. What did you do to my Jake?!" You shouted at him.

"Aww, if only Sunghoon could hear what you had just said, all his efforts to protect you, all his sacrifice and looses and still at the very end, my JAKE" Cleovor said, mockingly then tried to attack you but then he came, Sunghoon stopped him.

Cleovor angrily look at Sunghoon then disappear, you look at him, then immediately hug him.

"I'm sorry..." You whispered.

“No no don’t apologize..” Sunghoon pulled you more closer to him, bringing your head into his chest. He let out a shaky exhale as he tightened his hold on you, pressing the side of his head gently on the top of yours.

“Don't worry... I'll save him..." He whispered.

"for you..” he added.