Public space and the nude body, the desire to be seen. To discuss it, one must draw carefully the lines between fiction and reality, between taste and crime. Roshutsu (露出) is the term for the taste that links undressing and bodily exposure to arousal, and for the fictional-work genre name thematising such situations. In reality, an act of exposure in public space can be punishable under Article 174 of the Penal Code (public indecency) and related provisions; the fictional mode of expression and the real criminal act must be kept strictly distinct.

Overview

As a fictional genre, roshutsu refers to works in which a character’s undressing or bodily exposure is depicted as the narrative’s central situation. It has developed as an independent subgenre across manga, fiction, and adult video, with diverse subdivisions by setting and costume detail: outdoor situations, public-facility situations, and high-exposure costumes.

In the context of consensual play, costume play and undressing play conducted by agreement of the parties, in a private space not visible to outsiders, are sometimes called “exposure play”. In responsible practice, this is conducted with the consent of all participants, the blocking of any effect on third parties, and compliance with the law as absolute requirements, and is strictly distinct from a real act of exposure to others’ eyes in public space.

A real criminal act of exposure is regulated in Japan by Article 174 of the Penal Code (public indecency; up to 6 months’ imprisonment or a fine up to 300,000 yen), Article 1 item 20 of the Minor Offences Act, and prefectural nuisance-prevention ordinances. Repetitive exposure behaviour for a sexual purpose is positioned in the DSM-5 (2013) and ICD-11 (2018) as exhibitionistic disorder, but only where it brings distress or impairment to the person or others. This article confines itself to a cultural-historical account of the fictional genre and of consensual play in private space, and has nothing to do with affirming or recommending real illegal acts in public space.

Etymology

Roshutsu is a compound of the characters 露 (to reveal, dew) and 出 (to come out), meaning “to put out openly”, “to show by putting outside”. A word used since classical Chinese in the general sense of “showing a thing openly”, it settled widely as a general term in modern Japanese. In the development of SM and fetish culture in the latter twentieth century, the compound came to be used also as a term for a sexual taste, with usage fixed as a frequent word in adult magazines and fiction from the 1970s. The English counterpart is exhibitionism, introduced in 1877 by the French psychiatrist Charles Lasègue as exhibitionnisme and made a widely known medical term through Krafft-Ebing’s Psychopathia Sexualis (1886). Introduced first as a psychiatric concept of perversion, the term came in the latter twentieth century to be used also as a self-designation within practitioner communities.

History and development

Representation thematising the exposure of the nude body exists universally in art and literature worldwide: ancient Greek nude statuary, Renaissance nude depiction, and the modern study of the nude in art. These form a lineage separate, as a problem of the artistic field, from the sexual concept of exposure. In Japan, nude expression in Edo-period shunga and popular genre painting, and the lineage of nude painting by artists after the Meiji period, form the history of nude representation in modern Japanese art.

The development of the exposure theme in adult magazines, fiction, and manga in the latter twentieth century proceeded within postwar Japanese publishing culture: SM magazines from the 1970s, adult manga and doujinshi from the 1980s, and adult video from the 1990s each developed their own body of exposure-themed works. In the search-tag systems of doujinshi and adult manga, “roshutsu” appears with high frequency as a standalone tag and functions as a starting point for compound searches with adjacent tags such as “no-panties”, “no-bra”, “outdoor sex”, and “in public”. From the 2000s, exposure-themed works set in outdoor and public-facility situations have been produced at a steady rate; many are shot in places not breaching the law (private land, facilities during closed hours), and the content of the work and the reality of the shoot must be distinguished.

Derived forms and adjacent concepts

By degree, the taste spans a wide spectrum from mild to heavy: from underwear becoming visible, through emphasis of the body line by thin costume, partial absence of clothing, to complete undressing. Adjacent genres, no-panties, no-bra, and chakuero (sexual expression in a clothed state), constitute the neighbouring region; these are independent domains of taste that often overlap partly with the exposure taste. The taste also has two sides: an orientation toward “being seen” (a passive pleasure of being made visible) and an orientation toward “showing” (an active presentation to others’ sight); the two overlap yet are theoretically distinguished. As consensual play in a responsible community, exposure play is conducted with the consent of all participants, the blocking of effect on third parties, and legal compliance as absolute requirements, developed as role-play in a space where exposure to third parties’ sight is physically blocked.

Legal and ethical boundary

Article 174 of the Penal Code provides punishment for “one who publicly commits an indecent act”. “Publicly” means a state perceivable by an unspecified or large number of persons, and the interpretation of “indecent act” has been concretised through accumulated case law; in general, a sexual act including exposure of the genitals is punishable in public space. In the production of adult video works, exposure expression presupposes that the shooting site is not a public space, that all performers consent, and that the edited work’s distribution channel is within the law; shooting or distribution not meeting these requirements may itself be punishable and may give rise to civil liability. With the enforcement of the AV Performance Damage Prevention and Relief Act (2022), the performer’s consent, prior disclosure of shooting content, and right of contract cancellation were made statutory, and operation within that legal frame is becoming the industry standard for exposure-themed production as well.

See also

• Chakuero (Clothed erotica)
• Chakui (Clothed play)
• Article 174 of the Penal Code
• Waisetsu (Obscenity)
• AV Act (2022)
• Outdoor sex
• Roshutsu-hadaka (Full nudity)