Eriko and the Sisters that the Miki is beautiful. But the Miki had a sexual relationship of a real son, * and the Kindan. And conspired that two people drew the son of Eriko and enjoyed it in four people. Tempted son of Eriko who was a nephew, Kiyotaka to a weapon, and * was about to attack the body that such one day, the Miki were voluptuous to Eriko. And develop into unprecedented mother and child swap.