Two sets of mother and child who it is neighboring, and is a good friend who live in a certain apartment. However, the thing that was on too good terms between mother was vague, and sons were questions. On such one day, witness the scene of the shock accidentally. The fact that each other's mother are hit by the older brother of the stout wine shop which always comes and roll up. And with the plan that two sons planned…. Please enjoy the Drama which is immediate development to arise more than expected and Incest swapping.
