In a strange realm within the afterlife, a band of teens called the Battlefront fight to keep the mysterious, powerful Angel from taking them to the next unknown level.

In need of more weapons, the Battlefront descends into the Guild, a subterranean gunnery where every hallway and staircase is rigged with deadly traps.

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.

A replacement for the lead singer of Gldemo must be found. The manic, high-strung Yui tries desperately to assume the role. Hinata, meanwhile, seeks to avenge a mistake made long ago.

To strip Angel of her scholastic power, Yui devises a plan for the Battlefront to replace Angel’s test results with bogus ones. But they never realize the one who replaces her may be even more sinister than Angel could ever be.

When Angel is believed to be breaking scholastic code, Naoi uses this infringement to exert his growing power and places both Angel and Otonashi in a prison within the school.