long28, yamada anna, boku no kokoro no yabai yatsu, variant set, 1girl, arm at side, ass, bikini, black bikini, blue hair, blush, breasts, brown eyes, closed mouth, collarbone, dot nose, embarrassed, eyelashes, feet out of frame, female focus, from behind, hand on own chest, hands up, indoors, kneeling, large breasts, looking at viewer, looking back, mole, mole on neck, mole on thigh, multiple views, parted lips, ponytail, side-tie bikini bottom, swimsuit, teeth