Two muscular men in martial arts kimonos star in an explicit scene inside a traditional dojo with tatami mats, training benches, wall bars, ropes, and a wooden window in the background. A mature man, with a shaved head and gray beard, stands with his gi open, showing his defined torso while holding his erect penis in front of the mouth of a younger man kneeling and half-naked, with his kimono fallen around his waist and his thighs open, leaving his penis visible. The young man looks up with a submissive expression and his mouth open, while a third person with a black belt watches in the background with a surprised gesture, providing a contrast between the karate atmosphere, physical training, and explicit sexual tension.