In the Engi era, a young nobleman fitted out an ox-carriage late at night and, guided by the sound of a koto leaking through the cypress fence, made his way to a woman whose face he had not yet seen. The next morning, the single waka delivered by the “morning-after” messenger was the true beginning of the affair, and at the same time an omen of its end. For the Heian aristocrat, sex was a secret hidden behind the curtain of state, and at the same time something thoroughly made into art through poetry, incense, dress, and handwriting.

Sexuality in Heian Japan refers to the practices, expressions, institutions, and norms of sex in the Heian period, from the move of the capital in 794 to the founding of the Kamakura shogunate in 1185. As the ritsuryo system loosened and regent politics matured, the aristocracy developed distinctive forms of marriage and sexual etiquette, recorded in fine detail in The Tale of Genji and other court tales, the imperial poetry anthologies, and women’s diary literature.

Overview

Two things matter in understanding Heian sexuality: its dependence on status and its inseparability from literature. Because most surviving sources are aristocratic, Heian sexuality has been represented through court literature as the aesthetically shaped sex of the nobility. In reality, etiquette and norms differed greatly across officials, lower nobility, temple people, commoners, and outcasts. Scholarship holds that Heian sex cannot be measured by the modern monogamous ideal of romantic love; a husband’s sexual activity across several women coexisted with a wife’s status that did not institutionally deny her the possibility of receiving several men.

Marriage and visiting marriage

Aristocratic marriage rested on the tsumadoi-kon (visiting marriage), in which the husband went to the wife’s house, shifting from the later Heian period toward the mukotori-kon, in which the husband moved into the wife’s family home. In the visiting phase, the couple lived apart, the man arriving at night and leaving at the dawn bell. Three consecutive visits brought recognition as a formal couple, marked by a banquet from the woman’s family; if the visits ceased, the relationship effectively ended, and the initiative in separation lay chiefly with the man.

Aristocratic men held marriage relationships with several women, each living in a separate residence. A clear distinction existed between the principal wife and the others, but the latter were not simple concubines; each held a socially recognised standing as a wife. Which woman became the principal wife was decided by birth, property, and political backing, not necessarily by order of marriage. Heian women held property rights, inheriting and disposing of estates and residences; marriage did not transfer a woman’s property to her husband. This economic base, contrasted with the loss of women’s property rights under the later patriarchal house system, is taken as evidence of the relatively high social standing of Heian women.

The imperial harem

The emperor’s consorts formed a hierarchy of empress, chugu, nyogo, and koi. The empress and chugu originally denoted the same rank, but in the reign of Emperor Ichijo, Fujiwara no Michitaka’s daughter Teishi and Fujiwara no Michinaga’s daughter Shoshi were enthroned at once, producing the “one emperor, two empresses” arrangement in 1000, a case where the power struggle of the regent house transformed the harem institution itself.

Fujiwara regent politics ran on placing daughters in the harem, setting the grandsons born of them on the throne, and holding power as maternal grandfather. The salons of Teishi and Shoshi worked as literary spaces within this strategy, producing the contrasting talents of Sei Shonagon and Murasaki Shikibu. The ladies-in-waiting who served the consorts were the real bearers of harem culture; drawn from the lower nobility and accomplished in poetry, learning, and music, they often held sexual relationships with emperors and nobles, a half-sanctioned practice at the margin of the formal institution.

Court literature and sexual expression

Murasaki Shikibu’s Tale of Genji (early eleventh century) is the most finely shaped literary rendering of aristocratic sex and marriage. Hikaru Genji’s relationships with many women presuppose Heian polygyny and visiting marriage. Episodes such as Genji and Fujiwara’s adultery and Kashiwagi and the Third Princess reconstruct sexual events that could really occur in court society. Royall Tyler’s translation (2001) reads the work’s sexual depiction not as mere courtly aesthetics but as sex serving as a medium of power struggle over lineage, property, and influence.

Women’s diary literature, including the Kagero Diary (c. 974), the Izumi Shikibu Diary, and the Sarashina Diary, records Heian sex in the first person from the woman’s side. The Kagero Diary in particular sets down the feelings of a principal wife suffering over her husband’s visits to other women, directly attesting to women’s emotional experience under polygyny. The Izumi Shikibu Diary reconstructs a love affair around exchanged poems, a clear example of Heian sex strongly mediated by waka.

Waka and courtship

Heian love had a ritual structure of beginning, progress, and ending through the exchange of waka. A man learned of a woman by report and first sent a poem; a reply opened the affair, and no reply meant no beginning. The morning after a meeting, the man was required to send the “morning-after letter,” and neglecting it was taken to break the relationship. From the Kokin Wakashu (905) onward, the imperial anthologies established an independent love section with thematic divisions. Poetic technique (pivot words, associated words) developed as a device for expressing sexual matters through indirection, with words such as “to meet,” “night,” “robe,” “pillow,” and “dream” becoming conventional signs for sexual encounter.

What mattered in love was not only the literary level of the poem but the choice of paper, the shading of the ink, the beauty of the hand, the flowering branch attached, the blend of incense, and the fold of the knotted letter. The Tale of Genji repeatedly compares the handwriting of its women, tying calligraphic skill directly to an estimate of cultivation and taste. Heian sexual culture was integrated into an extreme visual, olfactory, and tactile aesthetic.

Monks’ precepts and chigo culture

Heian monks nominally observed the precept against sexual activity, but monks with wives and lovers were not rare, and the great temples held married clergy in practice. The chigo culture systematised in later periods (same-sex relationships between adult monks and boys) had its seed in the late-Heian great temples, where boys serving monks formed a distinct culture of ritual and dance that provided ground for sexual relationships. Gregory Pflugfelder traces the genealogy of Japanese male-love discourse back to medieval monastic culture, running on to the warrior youth-love of the Warring States period and the male love of the early-modern era.

Commoner custom and legal frame

Commoner sexual custom is hard to reconstruct because of the bias of surviving sources; fragments appear in tale collections and legal records. The custom of utagaki, in which men and women gathered and formed sexual relationships through improvised exchange of song, may have continued in eastern Japan and Kyushu, a prehistory of later village custom, though in the urban culture of the capital such collective rites were marginalised in favour of individual aristocratic courtship.

The ritsuryo codes punished adultery (sex with a married woman), but in the Heian period their application loosened and adultery was rarely enforced against the aristocracy. Sexual relations were tied closely to the notion of defilement; intercourse, like menstruation, childbirth, and contact with the dead, counted as “pollution,” requiring a period of abstinence before participation in court and shrine rites.

Significance and later scholarship

From the late Heian into the Kamakura period, the visiting and son-in-law marriages shifted toward husband-centred residence, and with the rise of warrior society the patriarchal house system spread. Women’s property rights contracted, polygyny was reorganised into a concubine system, and the layered court sexual culture gave way to medieval norms. Modern study of Heian sex began in Meiji-Taisho debates over the moral evaluation of the Tale of Genji and, through the postwar empirical work of Japanese scholars and the English-language scholarship represented by Ivan Morris’s The World of the Shining Prince (1964), came to re-evaluate Heian sexual culture not as a world of “elegant love” but as a historical construct inseparable from politics, economy, and religion. The large survival of women’s first-person literary records, the institutionalisation of waka as a medium of love, and the uxorilocal base of aristocratic marriage mark Heian Japan as a distinctive case in world history.

See also

• Edo-period sexual culture
• Shunga
• Sexuality in Buddhism and Shinto
• Sexuality in Jomon and Yayoi Japan