After her father is murdered, Komugi Yamashita finds a letter naming a suspect as innocent. The suspect is the son of a criminal executed 22 years ago. Seeking help from a lawyer, she uncovers shocking truths about her father's past.

After her father is murdered, Komugi Yamashita finds a letter naming a suspect as innocent. The suspect is the son of a criminal executed 22 years ago. Seeking help from a lawyer, she uncovers shocking truths about her father's past.