1boy, abs, bara, black_hair, black_male_swimwear, blue_eyes, blue_jacket, bulge, free!, jacket, large_pectorals, legskin, male_focus, male_swimwear, muscular, muscular_male, navel, open_clothes, open_jacket, pectorals, short_hair, sitting, smile, solo, suyohara, thick_thighs, thighs, yamazaki_sousuke