Koharu is a dull high school girl who is always alone. Her only hobby is making plastic models. One day, Koharu stops by a mysterious antique shop and purchases a plastic model gun and a toy figure named Alice. After spending the entire night assembling the gun, Koharu wakes up and witnesses bullets flying everywhere in school. She then meets Alice who moves like a human and tells her to get ready for a survival battle called "Girl Gun Fight", where she has to attack her schoolmates with a gun.

Noburu is a handsome designer who draws a high salary and has a good marriage with Aiko, whom he much loves. That is until Noburu witnesses Aiko enjoying an affair with her boss and looking very happy. Feeling betrayed, Noboru decides to get revenge on his wife.

Hayame's happily married life comes to an abrupt end and she is left alone, penniless and homeless! Things couldn't get any worse, until she runs into rich high-school brat Issei, whom she had previously humiliated! Sparks fly as two worlds collide in this unlikely Cinderella story!

Naoya Aizawa has been married for a few years to his colleague, Kana. The couple has a perfect life until a new employee named Noa Tachibana is assigned to Naoya’s branch office. Will Naoya be able to resist Noa’s temptation? What is the fate of this couple?

Teruo, Keigo, and Soryu, three curious elementary school children, encounter Mr. Sato, a wanted "child murderer" who has snuck into the abandoned school where they are playing to look for a time capsule.