She takes turns having sex with 4 men, including her husband and the husband of another man, for 100 thrusts each. When the 100 thrusts are finished, she moves on to the next man, and does another 100 thrusts, and so on. It's a real creampie Russian roulette game, and if she can get her husband to ejaculate inside her, she'll win 1 million yen! Can she synchronize her breathing with her husband and make him ejaculate inside her?! Beautiful young wife special!