Two AV actresses, Hinako Mori and Mizuki Yayoi, decide to film a Christmas date with a date plan that they each came up with in earnest. They each think they are dating different guys, but in fact they are dating the same guy. It's a prank! While one girl goes out to buy a surprise present, the two-timing guy is having the luxury of having sex with the other girl, but a punishment (?) of harem creampie sex awaits him!!