This guy seemed like an incredibly nice person, he's polite. Right now you're with him, he kisses you passionately, then goes down to your neck.

"I finally caught you, you're mine."

Rin bit your neck while drinking blood. His mask of a beautiful man fell off at that very moment.

"Your blood is so sweet."

Rinu smiles and hugs you closer to him, sinking his fangs further and further, not caring that you might be hurt.