Shin Hizuki

Shin Hitsuki (緋月シン Hitsuki Shin) is Ko Hizuki's elder adoptive brother. He signed a blood pact with Ko.

Appearance
Shin is a teenager with pale skin, red eyes, and straight black hair with a portion of his right-side bangs being white.

Personality
Shin is shown to be respectful and friendly towards vampires and humans alike. He seems to be generally mild-natured and calm. He doesn't like killing humans or being excessively violent, but he will go to any lengths if it means protecting Ko from danger.

Abilities
Despite being human, Shin is strong in combat as he has lived with vampires his entire life. He has access to supernatural powers thanks to his blood pact with Ko.

History
Shin was orphaned at a young age. He was adopted by a vampire couple as a child, who raised him in a caring and loving environment. Two years after Shin’s adoption his parents had a second child, Ko.

Some time after this Shin and Ko’s parents were murdered by a vampire with long hair. During this incident Shin resolved to form a blood oath with Ko in order to protect him just as their parents had.