Not an American user?


Kohakuiro no Yuigon ("Amber Testament") is the first in the row of detective games starring the fictional Japanese private investigator Ryūnosuke Tōdō. The events of the game take places in Japan in the year 1921, and Tōdō must investigate a mysterious murder of a rich man in his own mansion. The deceased had many relatives, and its the detective's job to find out which one of them (if any) has committed the murder.

The game plays mostly like an adventure with light simulation elements. The interaction is done with menu commands, focusing on conversation topics. The protagonist has to talk to the mansion's inhabitants about other people and hear their opinion concerning the crime, unlocking new topics as he gathers information. Rooms can and should be searched for clues as well. In his own room the detective can view dossiers and evidence.


There are no FM-7 user screenshots for this game.

There are 55 other screenshots from other versions of this game or official promotional screenshots.

Promo Images

There are no promo images for this game

Alternate Titles

  • "藤堂竜之介探偵日記 琥珀色の遺言" -- Japanese spelling
  • "Nazo no Masquerade" -- PC Engine title

Part of the Following Groups

User Reviews

There are no reviews for this game.

Critic Reviews

There are no critic reviews for this game.


There are currently no topics for this game.


There is no trivia on file for this game.

Infernos (15135) added Tōdō Ryūnosuke Tantei Nikki: Kohakuiro no Yuigon (FM-7) on Apr 27, 2014
Other platforms contributed by Infernos (15135) and Unicorn Lynx (174057)