Rule 34 Dev - 00s 2006 3girls arms_around_neck artist_name asphyxiation blush cosplay crossed_arms dated embarrassed genshiken glasses greyscale height_difference highres hug hug_from_behind kasukabe_saki koume_keito kujibiki_unbalance lab_coat long_hair miniskirt mole monochrome multiple_girls ogiue_chika oono_kanako otaku school_uniform serafuku signature size_difference skirt strangling sweat thighhighs translation_request worried zettai_ryouiki|5111950779