In this modern era, horny girls like our protagonist are not shy about having casual sex even with their boyfriend's dick! They challenge a bizarre escape game where they must extract cum within 60 minutes to win a cash prize and freedom. Our heroine, Hiyori, persuades her boyfriend, Shiro, by saying "It'll be funny! Show me your dick!" Despite his hesitation, she drags him along. The couple then engages in various sexual activities such as handjobs, blowjobs, tit fucks, pussy licks, and more. To determine which acts they perform next, they play rock-paper-scissors. Will Hiyori's insatiable desires lead them all the way to creampie sex?