Shijima Tsukishima

月島 しじま

Was a shut-in for two years before entering high-school, during which two stalks of Shimeji mushrooms grew on her head. Can't be bothered to do anything and is a pessimist. [Spoiler] In Chapter 45 it is revealed that she and her sister were both created by the simulation, along with the rest of the people across West Yomogi. [/Spoiler]