Portopia[]
According to http://vndb.org/v4511#main it appears to match up, 29 November 1985 was the Famicom release.
Sayo Yasuda's nickname Yasu apparently also the nickname of 間野康彦 (Mano Yasuhiko) who is the detective's assistant.
This article says it's short for "Yasuhiro" though.
Can we confirm if it's hiro or hiko? talk2ty 07:01, September 9, 2014 (UTC)
How is this game connected to Umineko?