Two strangers face each other across a counter at a high-end Ginza sushi restaurant: a company chairman and a woman in her late twenties, formerly a hostess. The agency has already drawn up the terms: a monthly allowance, weekly dinners, and two overnight stays a month. If the relationship is established after three meetings, the agency receives a substantial introduction fee from the man’s side. This is the standard opening transaction of the aijin haken business.

Aijin haken (Japanese: 愛人派遣, “mistress dispatch”) is the Japanese service in which an agency introduces affluent men to women who will become long-term companions, intermediating and managing a kept-woman relationship built around a monthly allowance. It is also called a mistress club (愛人クラブ) or mistress introduction office. It inherits the residue of the prewar patron (danna) system and sits at the top tier above the modern compensated dating market and dating clubs.

Business structure

The agency registers two streams of members. Male members must pass a screening aimed at executives, doctors, lawyers, and landowners with annual incomes in the tens of millions of yen; an enrolment fee in the range of several hundred thousand to a few million yen plus a monthly membership fee is typical. Female members register their appearance, education, and occupation in detail and declare a minimum desired allowance, with thirty to one million yen per month forming the standard band.

The flow runs as follows: the man browses female profiles and requests a meeting, the agency arranges the date and venue, and the first meeting is held at an upscale restaurant. After roughly three dinner meetings, mutual agreement constitutes a “contract,” and the man pays the agency a success fee equal to several months of the monthly allowance. Thereafter the relationship is treated as a matter between the two parties, with the agency ostensibly stepping aside.

The legal position is delicate. On the surface the operation poses as an extension of a marriage agency or a matchmaking service, and its fee structure takes the form of enrolment and success fees. In practice, if a physical relationship is built into the monthly allowance as a premise, the arrangement may fall under the Anti-Prostitution Law provision on procuring. Agencies sidestep regulation by framing the relationship as “mutually free association between consenting adults” and by keeping any sexual relationship out of the written contract.

History

Prewar Japan had a widespread practice in which affluent men supported one or more women financially, known by terms such as o-mekake (mistress) and ni-go-san (the “number two”). The custom of a patron supporting a geisha was the classic form. The postwar Anti-Prostitution Law and the high-growth era pushed this patron system ostensibly into decline, but it continued underground.

During the 1980s bubble economy, mistress brokerage through the high-end clubs of Ginza and Akasaka became active. A club’s mama would introduce a valued patron to a young hostess and mediate the allowance negotiation, and this informal system became the matrix of the modern aijin haken trade. From the 1990s onward, dedicated agency companies appeared and operated as visible “mistress clubs” in Tokyo, Osaka, and Fukuoka.

After the 2010s, with the popularization of compensated dating and the emergence of a middle tier of dating clubs, the aijin haken trade survived by specializing in the wealthiest clients. High-end agencies handling monthly allowances above one million yen and multi-year arrangements continue to operate out of public view.

Reception and criticism

The motive on the male side is to combine the maintenance of a marriage with sexual and emotional supplementation. The core clientele seeks a woman with whom a relationship can continue as a private matter without breaking up the household. On the female side, the motives concentrate on a stable allowance, free time, and avoidance of the labour intensity of shop-based work; a few dinners and overnight stays a month can secure an income of several hundred thousand yen, making it easy to combine with other work.

Critics describe the arrangement as a high-end form of sexual commerce or a substitute for contract marriage. The structure carries economic inequality directly into a personal relationship, and the rhetoric of female self-determination can mask effective exploitation. Others regard it as a transaction between consenting parties, and feminist debate itself is divided between defence and critique.

See also

• Compensated dating
• Anti-Prostitution Law
• Dating club (kosai club)
• Papa-katsu (compensated dating among younger women)
• Fuzoku (sex industry)