Rule 34 Dev - 1boy 234_(1234!) black_hair black_shirt blue_eyes blurry blurry_foreground bokeh buttons closed_mouth depth_of_field flower gakuran haori head_tilt high_collar japanese_clothes kimetsu_no_yaiba knees_up long_hair looking_to_the_side male_focus school_uniform shirt sitting solo sunlight tomioka_giyuu upper_body|13451722011