Lipstick. ADV (1988)

In Lipstick. ADV the player takes the role of Gorou, a young Japanese private detective. One day, a wealthy and powerful old man contacts him and asks him to find a box which - according to him - contained a family treasure. The young detective thinks that fortune has finally smiled to him, but when his pretty girlfriend Otomi disappears, he realizes that the mystery is bigger than he thought...