1girl, arm_behind_back, arrow_(symbol), bikini, blush, braid, breasts, collarbone, dated, glasses, grey_background, greyscale, hand_on_own_chest, kichihachi, large_breasts, looking_at_viewer, monochrome, navel, opaque_glasses, original, round_eyewear, school_uniform, serafuku, sweat, swimsuit, twin_braids, twitter_username, two-tone_background, white_background