Ran quits her corporate law office and eagerly joins Rinka, who begins investigating the case of a male host suspected of murdering a young woman.

After fighting off her mysterious attacker, Rinka realizes that the cases may be connected. An encounter with a homeless man yields some more clues.

When a sex worker is the victim of a serious sexual assault, Rinka steps in to help her, despite knowing how hard it will be to prove the case.