1girl artist_name bent_over black_bra black_garter_straps bra breasts chalkboard classroom dated folded_ponytail garter_straps gem glasses hand_on_own_hip heart heart_print holding holding_pointer huge_breasts jewelry kinako_(mzknk0) lace lace-trimmed_bra lace-trimmed_legwear lace-trimmed_thighhighs lace_trim looking_at_viewer miniskirt mole mole_on_breast necklace open_mouth pendant pointer purple_hair red-framed_eyewear red_eyes red_gemstone rin_(senran_kagura) senran_kagura senran_kagura_shoujo-tachi_no_shin'ei shirt signature simple_background skirt smile solo teacher thighhighs underwear white_shirt