Diabolik Lovers: More, Blood DX Pack

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.