Gensou Suikoden: Gaiden Vol. 1: Harmonia no Kenshi

Suikogaiden Volume 1: Swordsman of Harmonia (Genso Suiko Gaiden Vol. 1: Harmonia no Kenshi, 幻想水滸外伝Vol.1 ハルモニアの剣士) is a Visual Novel video game published by Konami released on September 21st, 2000 for the Sony PlayStation.
Gensou Suikoden takes place at the same time as the story of "Gensou Suikoden II", as "Another story that was not told".