Also known as: 幻想水滸外伝
A side story to Gensou Suikoden II, which was released in two volumes. Gensou Suikogaiden stars Nash Latkje, a Harmonian spy, and follows him as he plays a behind-the-scenes role in some of the events of Gensou Suikoden II, and then settles a personal vendetta in Harmonia.