Is there anyone besides me who plays it?

Basically it's a "Knives in the Dark" murder online RPG, only wapanese. You and others are stuck in a high school setting that ordered lots of pointy objects. One player, randomly determined, in the killer.

There's also Death Note Mode (one character spawns with a Death Note, another with the Shinigami Eyes. Hilarity Ensues.) and Nanaya Mode (KILL EVERYONE LOL).

Definitely worth checking out.