In 2X05, there were three major races in the world——
Vampires, half-vampires, humans.
Half-vampires feed on human blood, while vampires remain aloof and do not participate in hunting humans.
While contending with half-vampires, he is also afraid of vampire attacks. At their wits' end, humans came up with a plan, a plan that could annihilate vampires and half-vampires at the same time——
"The Vampire Bride (Vampire Bride)".