Wakaresaseya

are Japanese businesses that specialize in breaking up relationships, often by drawing one of the partners into an affair or by producing other incriminating evidence.

== How they work == For a fee, a customer names a target and, an undercover employee of the company then attempts to initiate an affair with or produce other incriminating evidence on the target. Though most often used to gather evidence of infidelity for use in a divorce case, it may also be used for purposes ranging from bringing shame to someone, securing the resignation of an employee, luring away the lover of one's spouse, or breaking up some other relationship.