Rin was born with red eyes and was abused by her family from childhood. One day, it was discovered that she has a rare blood type that attracts demons, and she resigns herself to becoming a sacrificial bride to a demon who will suck her blood dry. However, when the handsome demon Ibuki comes to take her away, he gently kisses her and tells her, "You are my beloved bride."

(Source: Kadokawa, translated)