Mesuneko Hishoshitsu

Kurou works in a company that specializes in "headhunting", finding and recruiting capable employees for big companies. A new client representing a company that has recently concluded a trade with an American software firm needs a new secretary. Problem: the last headhunter who was given a similar request has gone missing. So Kurou's boss wants him to get to the bottom of things, teaming him up with the resourceful and pretty headhuntress Tomoko. Naturally, as the partners begin the investigation, dark erotic secrets of the employees become gradually revealed...

[From Moby Games]