Which anime character is this person cos? Who knows that he met at the third animation exhibition of Shenzhen Convention and Exhibition Center?

Kuran Yuki, the heroine of Vampire Knight, is the adopted daughter of director Heizhu and the disciplinary committee member of Heizhu College. No memory before the age of five. Ten years ago, in a heavy snow, he was attacked by a vampire who degenerated into an "E-class". Rescued by the pivot of pure blood, adopted and raised by the chairman of the black Lord.