Three couples who can't get married because they don't have the money participate in an unreasonable proposal project! He proposes to her in public while having sex in front of a large crowd! If he succeeds, he gets 1 million yen for the wedding, but if he gets caught, he's out, but it's OK to cum inside! In front of everyone, the pleasure outweighs the embarrassment and the boyfriend gets excited at the sight of his girlfriend cumming like crazy! Would he marry him if he proposed like that?!