Second game in the Diabolik Lovers series and sequel to Diabolik Lovers: Haunted Dark Bridal. The game takes place one month after the prologue of the first game and introduces the Mukami brothers as four new love interests.

Komori Yui was was enveloped in trouble caused by the Sakamaki brothers, but somehow safely managed to live her daily life.

But one night a different family of vampire brothers show up in front of the Sakamaki mansion, having transferred schools.

They were from the Mukami clan, vampires said to possess greater magical power than the Sakamaki clan.

Now Yui is at the core of a struggle between vampires.