After two days of fleeing south, Iriya and Naoyuki find shelter in the Narimasu Elementary School (成増小学校, Narimasu Shögakkö) where Iriya decides to adopt a cat who she names Köchö (校長). The next day, while Naoyuki is heading over to a convenience store to buy food and supplies, a ragged man goes to Narimasu Elementary after hearing of a rumour of white haired girl there at appearing night from workers at the same convenience store...