The body of their dead homeroom teacher, Daigoro Tokuyama, is gone! As the perplexed students peer into the empty locker, they receive another message from Tokuyama. But Tokuyama is dead; who moved him? The next day, a mysterious woman appears. She seems like she is probing for something. Does she know about the corpse? But no, she's looking for something else... (Source: Amazon)