is a two volume series of spin-offs from the Suikoden series of console role-playing games. Suikogaiden Volume 1: Swordsman of Harmonia was released in the autumn of 1999; Volume 2: Duel at Crystal Valley was released in the spring of 2001. Both volumes are visual novels, rather than role-playing games the other Suikodens are known for. They were only released in Japan and never translated into other languages.
Nash Latkje, the protagonist controlled by the player and an agent of Holy Harmonia's Southern Border Defence Force, has been assigned to obtain information to either verify or disprove a rumour concerning the appearance of one of the 27 True Runes in the Jowston City States. During his travels, he encounters Sierra Mikain, a female vampire, who decides to accompany him on his journey. As a result, he soon becomes entangled in the larger conflict involving the events of Suikoden II.
After the completion of the Dunan Unification Wars (the events of Suikoden II), Nash intends to return to the capital of Holy Harmonia, the Crystal Valley. However, his travels involve more adventure than he anticipates.
His journey involves traveling through the Grasslands, where one village happens to be celebrating the legend of the Flame Champion and the Fire Bringers who stopped the Harmonians from invading some sixty year ago; an unfortunate stop over in Caleria, the base of operations for mercenaries of Southern Harmonian Border Defence Force; helping stop a wild dragon from terrorizing a village before finally reaching his destination.
As Volume 2 was released roughly a year before Suikoden III, it presumably helped set up and introduce the Grasslands, which were the main focus of Suikoden III. Nash also returns in Suikoden III; outside of Japan, Suikoden III is Nash's first appearance in the series.