- 1 Season
Diabolik Lovers begins with a young herione named Komori Yui. Yui is a high school student in her sophomore year. Yui's father is a priest and tends to move around quite a bit for his work. Due to Yui's father's profession, she is forced to relocated to a new town all alone and arrives in a mansion, which serves as her new home. Once Yui heads inside the mansion, she sees nobody around. She then decides to look around and explores the mansion until she discovers a young man lying on a sofa. As soon as she notices him, she starts to panic, as she notices five other men appear out of nowhere. Yui then discovers that each of them are brothers who were born from three different mothers. Yui also notices that these six men don't seem to be human, so she fears that these young men might be vampires.