Gensou Suiko Gaiden Vol. 1: Harmonia no Kenshi

This is the first volume of the side-story to Konami’s RPG series Suikoden.

You play as Nash, a special agent of the Holy Kingdom of Harmonia’s Southern
Fringe Security Force. He was sent to the City States of Jowston with a
mission: the Security Force has been informed that one of the 27 True Runes
has appeared in Jowston. He has to verify the rumor and to bring back as much
information as possible. On the way, Nash meets a mysterious woman named
Sierra and soon gets involved in a large conflict featuring characters and
events from the first and second Suikoden games.

Unlike the “mainstream” Suikoden games, this is not a RPG, but a “digital
novel”. You read text and watch background images, at some points making a
decision and leading the story to different paths.