Absolute Boyfriend (絶対彼氏。, Zettai Kareshi) is a Japanese manga series by Yuu Watase, first serialized in Shōjo Comic.

As the series progresses, Night begins to develop real human emotions, enabling him to truly love Riiko but also resulting in system malfunctions.

Night and Riiko spend a few happy weeks together, during which they go on dates, get their picture taken together, and purchase matching rings as symbols of their undying love.

Written by Yuu Watase, Absolute Boyfriend premiered in Japan in the March 2003 issue of Shōjo Comic.

[5][6] Madman Entertainment subsequently imported and republished the English-translated Chuang Yi volumes in Australia from May 17 until October 11, 2006.

[10] A drama CD based on this manga was released under the title Zettai Kareshi - Figure Darling in Japan by Marine Entertainment on August 25, 2004.

[23] A live-action adaptation of the manga began airing on Fuji TV on April 15, 2008, and ran for eleven episodes until its conclusion on June 24, 2008.

[25] On May 3, 2011, Jiro Wang replaced fellow Fahrenheit band member Wu Chun as the male lead of the drama series, now titled Absolute Darling.

[27][28] On February 23, 2018, according to the online platform Naver and media news site Newsen, Korean cable network OCN is in talks to adapt the manga with "Romantic Comedy King" as its working title.

[32] On May 30, reports confirmed Yeo Jin-goo and Girl's Day member Bang Min-ah as leads while Hong Jong-hyun was still in talks.