Shin Koihime†Eiyuutan 1 ~Otome Enran☆Sangokushi Engi [Shoku]~ (真・恋姫†英雄譚１～乙女艶乱☆三国志演義［蜀］～) is an eroge visual novel developed and published by BaseSon, and a part of the Koihime†Musou series, specifically the Shin Koihime†Eiyuutan subseries.
It is eventually re-released on July 29, 2016 in the All-in-One Package, Shin Koihime†Eiyuutan 123+PLUS, and then re-released alongside Shin Koihime†Musou -Kakumei- ~Ryuuki no Taibou~, in Shin Koihime†Musou Premium Package Shoku.
There is no inherent combat system in this game, and is essentially a collection of short novels, focusing primarily on the members of the Shoku Kingdom.
After watching a lengthy prologue, the player is brought to a story selection screen. The three stories are:
- Kan'u's Thousand Li Journey (関羽千里行?), Aisha's story, featuring Shia. This story is set where, after working with Karin for a bit, it is time for Aisha and Kazuto to return to Shoku.
- Chou'un's Riot in Pregnancy (趙雲妊娠騒動?), Sei's story, featuring Shuri and Hinari. This story is set during Sei's pregnancy, and how she is coping with it.
- Returning Home to the Ba Family's Seiryou (馬一門の西凉里帰り?), Sui's story, featuring her family, Tanpopo, Ruo, and Sou. This story is set to during a trip to the old territory of the Ba Family, Seiryou (Western Liang).
Two Appends were released for this game:
- Touka Mourning her Chubby Thighs (「桃香、ぽっちゃり太ももを嘆くの事」?)
- Touka and Renfa's Shirihime☆Musou (「桃香・蓮華の尻姫☆夢想」?)
- This story is a reference to the story in the Romance of the Three Kingdoms where Guan Yu leaves Cao Cao to rejoin Liu Bei's Service.