After returning from leave, Private Ah-Kai went to the medical room to report to the military doctor. Ah-Kai, holding his crotch with both hands, hesitated in his responses. Finally, when he took off his pants, the truth was revealed - it turned out that he found abstinence during the bootcamp too difficult to bear. Yesterday, he indulged in seven jerks in a row, causing his manhood to become swollen and blistered, forcing him to seek help from the military doctor. Looking at Ah-Kai’s guilty and ashamed face, the military doctor couldn’t help but have kinky thoughts of teasing him. So, he told Ah-Kai a way to pleasure himself without wanking. Little did Ah-Kai know that after tonight, he would be captivated by the pleasure of anal sex and would be unable to resist it!