Janshin Densetsu: Quest of Jongmaster (loosely translated to Legend of the Jong God: QUEST OF JONGMASTER) is a comedic high fantasy RPG-themed riichi mahjong (two-player variant) game developed by Aicom and released by Yubis (exclusively in Japan) for arcades (running Neo Geo MVS hardware) in 1994.
The fourth and final mahjong game developed for Neo Geo hardware (utilizing memory card support for saving progress and an optional joystick/button layout), Janshin Densetsu is the spiritual sequel to Taito's earlier 1990 game Mahjong Quest. While the game is considered an erotic "strip mahjong" game (as defeating opponents reveal scantily-clad women), the game does not include explicit nudity.
Like its predecessor, the game includes various RPG elements, such as experience points (where players can level up to unlock new power-ups, or "spells"), currency (where players can buy items), hit points (replacing mahjong score), and mana points (required to use spells). It also includes a high fantasy story and numerous tropes, stylized with a top-down overworld system (where the player character moves automatically) reminiscent of Dragon Quest and Final Fantasy.
It was later ported to the PC Engine CD-ROM² (requiring the Arcade Card add-on) on February 24, 1995 (published by NEC) and the Neo Geo CD on March 31, 1995 (published by SNK), both versions exclusive to Japan.