Shimeji Simulation

After locking herself inside her closet for two years, Shijima Tsukishima finally comes out of isolation to attend high school. However, when she looks at herself in the mirror, she discovers two shimeji mushrooms growing on the top of her head. This odd occurrence, combined with a lack of social ability and being bullied in middle school, leads Shijima to keep to herself when she arrives at schoo...