Only because it's a hidden camera can you see the truth of the 'man who just wants to have sex' and the 'girl who cried.' Mina-chan, 20 years old. After karaoke with a pick-up artist and her siblings, she is taken to a private room. 'Tell your brother,' she uses her actual brother as a shield for complete protection, but due to exhaustion from the mud fight, she takes a break on the bed. 'There's a fine if you enter!' Despite extreme vigilance, she finally gives in to the pick-up artist who tries more than ten times, 'This is the worst. Tears are coming...' From trust, she truly cries, yet she accepts the large penis! No amount of money could get her to have sex with her sibling friend, but due to a breakdown in their relationship, they end up having sex unexpectedly!