Toshiki Yui

Toshiki Yui (唯 登詩樹) (born 1956 in Kyoto Prefecture, Japan) is a Japanese seinen manga artist. Some of his early work was published under the name Masaki Katō (加藤 雅基). He has been publishing since 1986.

Yui is known for his computer-assisted drawings, manga, and web-images of pretty and sexy girls (bishōjo). He specializes in romantic comedies, sometimes supernatural and often sexually explicit, about these girls and their male and female friends.

Three of his works have been translated into English, Misty Girl Extreme, Hot Tails, and Wingding Orgy. Writing about Kagome, Kagome, the French manga dictionary Dicomanga pointed to Yui's large usage of computer software which gives a particular yet slightly icy tone to his universe. Also writing about Kagome, Kagome, SplashComics noted that Yui used the technique of using photographs as backgrounds. Derek Guder, writing about Hot Tails, described Yui as "an adult manga king", enjoying his unique "mix of sex, humor, and bizarre imagination. He simply lets his id run wild, and we get stories that are as surreal as they are sexual". Guder found the artwork of Hot Tails "still a bit unpolished and busy in these older stories, but his style is undeniable. The art is gorgeous, the ladies are sexy, and the premises too bizarre not to enjoy", giving it a rating of four out of four stars. Yui's Hot Tails has been called the best known exponent of the futanari genre in the West.

As Masaki Katō

 * Battle Staff (バトルスタッフ) (1986)
 * Kaori Paradise (KAORI パラダイス) (1986)
 * Arms (アームス) (1988)
 * Enamel Sketch (エナメルタイプのエスキス) (1989)
 * Kurara Shake (くららシェイク) (1990)

As Toshiki Yui

 * Mermaid Junction (マーメイド・ジャンクション) (1987)
 * Confusion of the Heart (ただいまハート混線中) (1988)
 * Umauma (ウマウマ) (1990)
 * Misty Girl (ミスティガール) (1991)
 * Junction (ジャンクション) (1993) (Incorporated into Hot Tails, Vol. 1)
 * Kirara (1993–1997)
 * Hot Junction (ホットジャンクション) (1993–1994)
 * Yui Museum: The Early Works Collection of Toshiki Yui (唯ミュージアム　唯登詩樹初期作品集) (1995)
 * Don't Do It, Yūko-san (いけないよゆう子さん) (1996)
 * Wingding Party (ウィンディングパーティー) (1990) (Incorporated into Hot Tails, Vol. 2)
 * It (イット) (1999)
 * Yui Shop (1999–2003) Kodansha
 * Re Yui (2000)
 * Trouble Gemini (とらぶるジェミニ) (2000)
 * X2 (2000)
 * Princess Quest Saga (2000)
 * Kagome Kagome (かごめかごめ) (2000–2001)
 * God of the Sands, People of the Sky (砂の神 空の人) (2002)
 * My Two Wings (ボクのふたつの翼) (2003–2005)
 * Today's Special: Plat du Jour (本日のオススメ　プラ・ドゥ・ジュール) (2004)
 * Mai's Room (MAI の部屋) (2006–2008) Kodansha
 * H-na (Hな, Perverted, 2008)
 * My Sisters (2010)
 * Want to Sex (して. . . ほしいの♡ Shite... Hoshii no—lit. I Want to Do It, 2010)
 * My Dollhouse (3 volumes, 2010–, status unknown but thought to be either ended or in hiatus)
 * Ruri Ruri: Futago no Jijou (るりるり 双子の事情, Ruri Ruri: The Twins' Circumstances, 2012)
 * IVNO ユノ (Juno, 2013; IVNO being the Latin spelling)
 * あね My Sister+ (2013; a continuation of My Sister, coupled with IVNO ユノ for a tankōbon release)
 * Saikin kono sekai wa watashi dake no mono ni narimashita… (最近この世界は私だけのモノになりました… Recently this world became mine only..., 2013–; published in Grand Jump magazine)