Tōdō Ryūnosuke Tantei Nikki: Kohakuiro no Yuigon
藤堂竜之介探偵日記 琥珀色の遺言 - Japanese spelling
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.
YID YANG Has Left In Protest (164170)