Three groups playing in the sea! - While the host is seriously working on a fake planning game, a gal wife and her husband's best friend try an erotic game in a separate room behind a magic mirror...! - ? - If you can have sex, you can get a big prize immediately! - In front of her husband, who is totally unaware, a beautiful gal wife sees her husband's best friend's erect dick and gets horny! - ! - With the lightness and sex appeal of a gal wife, she has sex with her husband's best friend right in front of him.