Fushigi no Dungeon: Furai no Shiren Gaiden: On'na Kenshi Asuka Kenzan! is a side entry in the Shiren the Wanderer series following the events of Shiren the Wanderer 2 for the Nintendo 64. The game received Japan-only Dreamcast and PC releases in 2002.
Development was performed by Neverland Co.,Ltd. and the game was published by Sega (Dreamcast) and Chunsoft (PC).
Like other games in the series, On'na Kenshi Asuka Kenzan! is a roguelike role-playing game that features randomized dungeons and a turn-based combat system. If a player dies, they lose their items and experience.
The story begins with Asuka crossing paths with Shiren's talking weasel companion Koppa while training, and the two set out to investigate the cause of a poisoned water supply in the village they are staying in. The Dreamcast version includes a total of 12 dungeons, and the PC version expands that number to 31 dungeons.