Hidden Secrets | A VK x DL Crossover

Relationships aren't perfect. Even the relationship between Haruka and Juri Kuran, which are believed to be the picture perfect couple. One night, Haruka returns drunk from a party that was hosted by the Senate and ends up getting into a verbal fight with Juri. On that night, Juri leaves to the Sakamaki family's soiree, where she meets the vampire king Karlheinz and ends up having a one night stand with him. Eventually she finds out that she is pregnant with a child, which turns out to be her daughter, Yumi Sakamaki.

Years later, when Ryoutei Academy is brought down by severe weather conditions, Karlheinz resolves to send his children, Yui, and the Mukami brothers to Cross Academy, a school that is both for humans and vampires. There, Yumi will find the answers to the truth about her mother and deepen her relationship with Ruki Mukami, her love interest.

However, someone else also has his eye on Yumi, much to Ruki's displeasure.

Sad truths will be revealed, and many obstacles will befall both Ruki Mukami and the Sakamaki princess...