The original Diabolik Lovers visual novel game was released in Japan, marking the start of the franchise.
The first season of the Diabolik Lovers anime adaptation aired on Japanese television.
A sequel visual novel, Diabolik Lovers More,Blood, was released, continuing the story and expanding the franchise.
The second season of the Diabolik Lovers anime, titled Diabolik Lovers More,Blood or Second Kiss, aired on TV.
Several drama CDs for Diabolik Lovers were released, adding more character stories and expanding the universe.
The Mukami brothers, Ruki, Kou, Yuma, and Azusa, are born, marking the beginning of their complicated family dynamics.
The six Sakamaki vampire brothers—Shu, Reiji, Laito, Kanato, Ayato, and Subaru—are born into the Sakamaki vampire family.
Yui Komori is sent to live at the Sakamaki mansion as a human captive but becomes entwined in their lives.
Yui meets the Sakamaki brothers individually, beginning complex relationships with each vampire.
Yui is introduced to the Mukami brothers, expanding her entanglement in vampire affairs.
Yui learns about the mysterious curse linked to her blood that attracts vampires and the dangers it brings.
Azusa leaves the Sakamaki family to join his own Mukami siblings, affecting alliances.
Yui uncovers repressed memories about her family and the true reason she was sent to the Sakamaki household.
Reiji asserts control over the Sakamaki household, attempting to bring order among the brothers.
Seiji Mukami appears, complicating the Mukami family dynamics and challenging the Sakamaki brothers.
