START-590 | My kind senior colleague at my part-time job turns into a blowjob maniac when she gets drunk. As a virgin, I was immediately given a blowjob, my balls were licked, and my ass was licked until I was so weak in the knees that I ejaculated a torrent of thick semen. - Haru Shibasaki

Shibasaki-san, the gym's training supervisor, is perfect at work, but when she drinks, she transforms into an incredibly wild "fellatio maniac"! As a virgin, I'm at her mercy, and before I know it, my heart and body are completely captivated... Her seduction and jealousy-fueled actions are all part of her plan to have me all to herself...!? I can no longer escape the loving yet educational guidance from my senior, whose intentions are hard to read!