Atori has an unusual part-time job - demon hunter. After school, she hunts demons for a mysterious organization named N.U.E. To kill her enemies, she unsheathes the saber hidden within her hair. However...

Yui, a girl who loves panties, gets wrapped up in battles using powerful underwear. Yui receives special striped underpants that give her powers.

In response to signs of an impending invasion by alien conquerors, five young people have undergone modification surgery in order to gain the strength to fight them off when they arrive. There's been no sign of...