Basically, Lamento is a yaoi based game in a neko community. Meaning everyone in the game has ears, tail etc. It's sort of like a dating game but not really, it's just that you will be Konoe in the game as the main character and you get to choose who you want to meet. (Asato, Rai, Barto) Each character you choose to meet has a different story plot. Did I mention this game is rate for 18 and up...? I never played the game before but I just love the graphics and storyplot. Each character is cursed including Konoe.
For more information, here's the web:
