the 7th installment of the super popular series where male and female friends challenge to escape from a sealed room! the method of escape is "just accumulate 20ml of semen!" a big-breasted female college student handjobs! masturbation! blowjob! sex! with a male friend she's never even held hands with in order to escape! but there's no condom... "it's okay if it's raw because we're going outside?" even those words are in vain, young men and women cum inside due to momentum! moreover, because it feels good, they do it many times! friendship between men and women is not established before sexual desire! sex only to satisfy each other's desires!