SKMJ-548 Lovey-dovey Couples Take On The Challenge Of A Swapping Game Where They Exchange Partners! [Shonan Swimsuit Couple Edition] If You Can Make The Other Person's Girlfriend Or Boyfriend Cum The Most, You'll Win 1 Million Yen! To Win, You'll Have To Use Your Nasty Erotic Skills Lol. To Win The Prize Money, You'll Have To Have Raw Sex With Someone Else In Front Of Your Lover!