Rena Miyashita, a slender track athlete training for a big meet, gets a massage from her coach's recommendation but ends up at a shady parlor. Sensitized by aphrodisiac oil, her body is relentlessly teased, leading to uncontrollable orgasms and squirting. Her innocent cervix is thoroughly developed, and she experiences intense pleasure, squirting and urinating repeatedly until she reaches a squirt orgasm. Her young pussy is fully developed.