This title is a command-based adventure game originally released in Japan by Riverhill Soft in 1987.

This is a well-known mystery adventure game for PC. The standout feature is the sheer volume of data: during investigations, you can inquire about details such as names, occupations, family members, ages, blood types, and places of origin. This vast amount of information adds depth to the characters and setting, helping to build a realistic world. Even if you repeat the same command, you might trigger new developments. This combination of extensive data and mature atmosphere makes it noteworthy as one of the first truly adult-oriented games.


*This application does not have a scene select mode.
*The main game and gallery screen (*Gallery) are in Japanese version.
*Other menu screens and "How to play" screens are in English.