In a world plagued by infidelity, a mysterious organization emerges to exact justice on behalf of those wronged. Dubbed the "Furin Higaisha no Kai" (Circle of the Adultery Victims), this enigmatic group takes it upon themselves to mete out social "death" to those who commit adultery, thereby easing the pain of their victims. With a solemn vow to bring perpetrators to justice, they stalk their prey and await the perfect moment to strike, all in the name of vengeance and retribution.