It has been serialized in Shueisha's seinen manga magazine Weekly Young Jump since January 2006, with its chapters collected in 74 tankōbon volumes as of December 2024.

Xin learns that Piao served as a bodydouble for Ying Zheng and was mortally wounded in a power struggle for the throne.

Successful in this endeavor, Xin starts his military life as a Qin soldier and then commander on the battlefields of the warring states of China.

He relentlessly pursues his goal of becoming the "Greatest General in the World", also helping King Zheng of Qin achieve his dream of unification to end the incessant warfare once and for all.

Written and illustrated by Yasuhisa Hara, Kingdom has been serialized in Shueisha's seinen manga magazine Weekly Young Jump since January 26, 2006.

[13] Before Kingdom, Hara published four prototype one-shot chapters: "Kongo" (金剛) (November 18, 2003);[d] "Uma Shuhei San-hyaku" (馬酒兵三百, "Horse and Liquor for 300 Soldiers") (January 15, 2004);[e] "Li Mu" (李牧) (April 1, 2004);[f] and "Meng Wu and Chu Zi" (蒙武と楚子, Mō Bu to So Shi") (December 2, 2004).

[19][20] In February 2025, Viz Media announced that it licensed the series for English publication in North America starting on November 11.

The first season was directed by Jun Kamiya, written by Naruhisa Arakawa, featured music composed by Minako Seki, and was produced by Izumi Nakazawa.

Akira Iwanaga replaced Jun Kamiya as director, Izumi Nakazawa served as series producer, and the character designs were handled by Itsuko Takeda, Kumiko Tokunaga, and Makoto Shimojima.

[30] On April 26, 2020, the anime production committee announced that episode 5 and onwards of the third series would be postponed by the COVID-19 pandemic.

[43] In April 2018, Kingdom's author, Yasuhira Hara, revealed that a full-length live-action film of the series had been green-lit.

The author stated he took part in script meetings, praising the 'satisfying' screenplay, the 'unprecedented' budget, and everyone in the 'ultra-grand' casts, starring Kento Yamazaki and directed by Shinsuke Sato.

Titled Kingdom 3: The Flame of Destiny (キングダム 運命の炎, Kingudamu Unmei no Hōno), it was released on July 28, 2023.

[56] A fourth sequel Kingdom 4: Return of the Great General (キングダム 大将軍の帰還, Kingudamu Daishōgun no Kikan) is scheduled to be released on July 12, 2024.

[57] A PlayStation Portable beat 'em up styled video game was released on November 25, 2010, entitled Kingdom Ikki Tousen No Tsurugi.

The record was due to its "Social Kingdom" campaign in which fans and other artists were given the task of redrawing the entire 26th volume.

Participants included manga creators Eiichiro Oda (One Piece), Masashi Kishimoto (Naruto), Hirohiko Araki (JoJo's Bizarre Adventure), Takehiko Inoue (Slam Dunk), Hiroshi Motomiya (Salary Man Kintaro), as well as voice actors and fans.

[95] The Social Kingdom campaign was one of the Entertainment Division's Jury Recommended Works at the 16th Japan Media Arts Festival in 2012.