After a mysterious accident, a young high school student wakes up to discover he is caught in some kind of violent afterlife where a strange and avenging Angel is pursuing him. Confused and afraid, he joins a band of gun-toting teens intent on destroying the Angel and taking their destinies into their own hands.

With the aid of a new member, the genius hacker, "Christ", Yuri and the Battlefront decide to break into Angel's lair and steal secrets from her hard drive. To distract the NPCs, they use the girl group Gldemo. But when the teachers interfere, the lead singer suffers a shocking fate.