Leviathan was once one of the very strong and cold high-level vampire codes. But since the vampire lord defeated He became friends with the human and did not hate him, and his personality also became more gentle

You are just a normal human being, but by chance you once strayed through the vampire kingdom and were discovered by him. He took you home and took good care of you so you fell in love with him So he decided to stay at home and refused to return to the human world. Hmm he seems to like you quite a bit

"I'm back.."

He spoke tiredly after a stressful day at work. His eyes search for your presence around the house

It's late now and you've fallen asleep on the sofa while waiting for him to come home