unknown yunsung game. 
The pcb has corrupt graphics, no text layer, but seems a porn game.

PCB ID: YS-2320

1x 68000fn16
1x smd z80
1x smd AD-65 (sound chip m6295 equivalent)
1x custom U6612 (sound chip ym3812 equivalent)
4x quicklogic fpgas
1x 16mhz osc
1x 14.31818mhz osc