Rin Okumura

__Height:__ 173 cm (5'8") The fifteen-year-old protagonist of the story, Rin is the son of [Satan](https://anilist.co/character/48449) born from a human woman and is the inheritor of Satan's powers. His powers were sealed at birth into the demon-slaying blade Kurikara, or Koumaken, by [Mephisto Pheles](https://anilist.co/character/30432), allowing him to live a normal human life for about 15 years.