( Ps. everybody in this story is a dog!XD ) Dogs that suffer depression have been getting this new sickness instead of dying. It's called Sorrowful. Uni and his friends have been avoiding these dogs. One day Uni runs into one, but she's different, she still has a flicker of hope, and it's said that if they have even a small bit of hope left, they can still be helped.

This book is after a year of cory being in Danson high where a new girl arrives~