Koihime Musou: Doki Otome Darake no Sangokushi Engi (lit. Love Princess†Unmatched ~Throb☆Romance of Three Kingdoms Filled with Girls~) is a Japanese adult visual novel and strategy game based on the classic Chinese novel Romance of the Three Kingdoms.
It was developed by BaseSon, and was first released on January 26, 2007, for the PC as two DVD-ROMs, followed by a re-release on April 11, 2008, containing an extra CD-ROM. A PlayStation 2 version, titled Koihime Musou (恋姫†夢想) developed by Yeti and published by Regista was released on October 30, 2008. A new version of Koihime with many new characters titled Shin Koihime Musou: Otome Ryouran Sangokushi Engi (真・恋姫†無双 〜乙女繚乱☆三国志演義〜) was released on December 26, 2008. A third version titled Shin Koihime Musou: Moe Shouden (真・恋姫†無双～萌将伝～) was released on July 23, 2010.
A manga adaptation by Japanese illustrator Hizuki Yayoi was first serialized in the Japanese magazine Dengeki G's Festival! Comic on April 26, 2008. An anime adaptation produced by Doga Kobo began broadcasting on July 8, 2008, and several seasons have continued.
All characters are loosely based on characters of the novel Romance of the Three Kingdoms and are grouped in the faction/kingdom they belong to and called by their Japanese names.
