ASSASSINS PRIDE

Humanity survives behind the glass walls of Flandore, where members of the Noble class defend civilization from monsters using mana. Melida Angel, heiress to House of Angel, reaches the expected age without manifesting any magical ability, raising doubts about her bloodline.

Half-vampire Kufa Vampir is sent to investigate with a brutal second order: if Melida truly cannot use mana, he must kill her. When she fails the test, Kufa refuses to execute a girl he believes is being punished for circumstances beyond her control. Instead, he secretly gives Melida some of his own mana, placing both of them in danger.