[Kisho-Muri (A6)] National Simultaneous Sexual Characteristics Examination {Chin²}

A pair of nervous schoolboys named Nakahara and Yagi, wearing shirts labeled with their surnames, are subjected to a clinical "Penis measurement" examination that quickly spirals into a competitive touching session. Encouraged to "keep going even if you start feeling like you need to pee," they furiously stroke themselves side-by-side, flushed and sweating, desperate to outdo one another. The tension peaks as both boys tremble on the edge of climax—Yagi reaching his first ejaculation while a flustered Nakahara is left vowing to do better next year.