1girl, aqua_footwear, ass, black_hair, blue_background, buruma, dated, from_behind, gradient_background, inoue_takina, long_hair, looking_at_viewer, looking_back, lycoris_recoil, midriff, nii_manabu, purple_eyes, shoes, signature, sleeveless, sneakers, solo, sports_bra, squatting, thighs, two-tone_sports_bra