Based on the anime and manga of Vampire Knight, this is a featuring the children of the three main characters- Zero, Yuki and Kaname. Yuki gives birth to twins- Zero's son (Zuko) and Kaname's daughter (Kanuki). Zuko feels isolated from his mother, as it seems Yuki likes Kanuki more. Zuko seems to have every right to hate Kanuki but something is making him become protective of her.