Nude Physical Fitness Test 2020! This event includes leg splits, side jumps, sumo wrestling, butt sumo, stretching, squats, and even a special male fertility examination. Hosted by the Prefectural University Sports Research Institute, three innocent and pure students—Kanna, Yui, and Mitsuha—take part. During the leg split test, shy Mitsuha takes the lead by removing her panties first, encouraging the others to follow. Strict rules state that failure to cooperate will be reported to the education board. The instructor urges, "Open your hips wider, stretch further, you're still bent—can't you go deeper?" They aim for a record with a one-minute split. Amidst the boys' staring eyes, Mitsuha whispers, "I can't perform because the boys are staring at me so lewdly..." Next is the side jump test! Coached to "push your hips out more," they achieve an impressive result, earning loud applause from the crowd. During stretching, the girls are held by boys as they arch backward, revealing their soft, newly grown pubic hair. Then comes butt sumo—dokkoi!—as they push against each other's buttocks, showcasing strong, determined forms. During squats, they struggle to lower their knees, and with each motion, their labia majora open and close visibly. Each time, Mitsuha murmurs, "I feel like I'm going to pee..." Finally, the male fertility test! Shocked, Mitsuha protests, "What do you mean I have to help? Just because we're classmates doesn't mean I should do this..." but is persuaded to cooperate for the sake of everyone. Though it seems simple—just sitting with legs spread—it's an unusual examination where boys' semen is manually extracted. Upon seeing semen for the first time, Mitsuha comments, "It smells fishy..." This event draws attention as a unique physical test where pure youth and raw physical allure intersect.