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What is in the image: a drawing that shows the anatomy of a man's upper body, focusing on the chest and shoulders. it illustrates how the pectoral muscles connect to the collarbone. the text, written in japanese, explains the anatomical details and how to draw them.

WDTagged Character:

WDTagged Tags: muscular, 2boys, pectorals, muscular male, multiple boys, male focus, large pectorals, abs, faceless, bara, no nipples, nude, monochrome, upper body, scar, faceless male, white background, simple background, arms behind back