Zanki x 99

While leaving school on her way to a job interview, Nitta Akira sees someone jump from the third floor of her school. Suddenly she wakes up in a padded white room surrounded by ninety-eight other girls—and she shortly learns they all applied for the same job. All the girls' clothes have been changed to bloomers and a numbered shirt. Akira wears the number twenty while Akise Kaede, the strange freshman from the same university, wears the number ninety-nine. While the girls mingle amongst themselves, they notice the large TV screen at the front of the room. The game console below it is loaded with a cartridge called "Blue Bird."

A loud noise fills the room and the girl whose shirt reads one disappears, soon reappearing on the screen dressed in a different outfit. She soon meets a gory end at the hands of a monster in the game world. As more girls continue to disappear, the others panic when they realize they will meet the same fate. Fearing for her own life, Akira tries to think of a way out. Kaede, however, seems to be enjoying their predicament, and she antagonizes the upcoming victims.