2boys, :d, ahoge, arm_up, artist_name, black_hair, black_pants, buttons, checkered, dated, double-breasted, feet_out_of_frame, from_above, gakuran, grass, happy_birthday, holding_own_arm, jacket, layered_sleeves, long_sleeves, looking_at_another, looking_at_viewer, lying, male_focus, messy_hair, multicolored_hair, multiple_boys, on_back, on_grass, open_mouth, outstretched_arm, pants, parted_lips, purple_hair, school_uniform, short_hair, smile, straitjacket, striped, striped_jacket, striped_pants, two-tone_hair, white_jacket, white_pants, yaoi, yellow_eyes