"Vampire Knight: Guilty" is the second season of the anime series based on the manga created by Matsuri Hino. It continues the story of Yuki Cross, a human girl who attends Cross Academy, a school for both humans and vampires. The series explores themes of love, loyalty, and the struggle between different factions of vampires. In this season, Yuki grapples with her identity and feelings for two key characters: Zero Kiryu, her childhood friend, and Kaname Kuran, a pureblood vampire. As tensions rise between humans and vampires, Yuki must navigate complex relationships and uncover dark secrets that threaten the peace at Cross Academy.