There is a male model with a muscular body posing in front of a blackboard

High resolution, masterpiece, The best quality at its best,最high quality,high quality, Height Details,boy, childの体,,Slender,No muscles,10歳のboy, , Short body,Viewed from the front,topless,Upper body naked,Both arms are tied,(white boxer shorts),The groin is bulging,The crotch is pointed upwards,Playing Banzai,Both arms raised,Both sides are visible,Wrist rope,Shiny skin,Blonde short hair,Brown eyes,classroom,Standing in front of a blackboard,Are standing,The whole body is visible,Sweat, Crying face,blush,

(low quality, worst quality:1.4), (FastNegativeEmbedding:0.9), girl, 2character, poorly drawn hands, poorly drawn feet, poorly drawn face, out of frame, mutation, mutated, extra fingers, extra nipple, extra limbs, extra legs, extra arms, disfigured, deformed, crosseye, body out of frame, blurry, bad art, bad anatomy, blurred, text, watermark,