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.

Yui's heart gets stolen by a famous demon collector from the Demon World. Her heart is replaced with a magic crystal. The magic crystal's effect will gradually wear off which would put Yui's life in danger. The vampires (Sakamaki, Mukami and Tsukinami) go to the Demon World in order to retrieve her heart, but at the same time, a parade takes place. [from [url=http://diabolik-lovers.wikia.com/wiki/Diabolik_Lovers_LUNATIC_PARADE]Diabolik Lovers Wikia[/url]]

A curse dyes the moon red. It's as though it were an apple dipped in blood. Mysterious incidents in which vampires are killed one-by-one in the human world began to occur. The feuding brothers of the Sakamaki, Mukami and Tsukinami households started to suspect and become cautious of one another. As a result of this, the equilibrium of the spiritual world gradually headed towards collapse. Then, there is the lone and maddened young boy who lead the mysterious, decaying beings of the spiritual world. Who will be the one that'll get their hands on the bloodstained paradise (Eden)? [Translation of the [URL=https://www.youtube.com/watch?v=2zTPyCm0eG4] official YouTube PV description[/URL].]