A young lady found at a hot spring inn aims for a high prize by entering the men's bath with just a towel, flat chest challenge!! She boldly pretends to be a man and doesn't hide her chest! She storms into the men's bath with her flat chest exposed!! If she completes various missions without being caught, she gets the prize! High-difficulty erotic missions naturally mean the money goes up fast! Won't get caught talking to male customers? Secretly jerk them off without other male customers noticing! Blow jobs in secret? Challenge the highest difficulty of flat-chested sex... but got caught?! The excited male customers, even the small-breasted girl is super excited? Will you succeed in getting a high reward by going all out together and having an orgy to "collect large amounts of semen"?
