Kana, a social worker supporting troubled citizens. One day, she took on a man named Yoshino. Her job is to help him recover from the loss of his beloved dog that he had been with for many years. And on that day, I visited Yoshino's house to talk, but Yoshino couldn't face reality and ended up accusing me of killing his beloved dog. After that incident, I was removed from handling Yoshino's case. However, the enraged Yoshino attacked me on my way home from work and locked me in the cage where his dog used to live… .
