1girl, o, ahoge, bare_arms, bare_legs, bare_shoulders, brown_eyes, dress, feet_out_of_frame, grey_hair, long_sleeves, looking_at_viewer, lying, multicolored_hair, namari_siro, on_side, onii-chan_wa_oshimai!, open_mouth, oyama_mahiro, pink_hair, simple_background, sleep_bubble, sleeveless, sleeveless_dress, solo, two-tone_hair, white_background, white_dress