Yuri Otani, much to her disgust, has been elected by her class for alien fighting duty. Together with Kasumi Tonime, who joined the alien fighter simply for the sake of doing so, and Kumi Kawamura, who became and alien fighter to avoid the responsibility of yet another year of class presidency, she must defend her school from periodic alien attacks. Introspection, fear, anxiety and friendship await Yuri as she is forced to stare life itself in the mouth in her chaotic coming of age.
Episode 1
Yuri has to fight aliens invading her school, and must wear some kind of yucky alien helmet...
Episode 2
When Yuri arrives at school, she finds a weird huge mushroom-like thing in the playground.
Episode 3
Summer vacations have come at last, but Yuri is depressed. She still hates fighting aliens…
Episode 4
One day, a gigantic alien appears on the school rooftop and won't move from there anymore…
