1boy, 1girl, ahegao, all_fours, bar_censor, black_hair, blue_skirt, breasts, brown_eyes, censored, collar, commentary_request, doggystyle, fat, fat_man, hetero, highres, himeragi_yukina, leash, medium_breasts, nipples, open_mouth, plaid_clothes, plaid_skirt, red_collar, saikai_academy_school_uniform, school_uniform, sex, sex_from_behind, short_hair, sincos, skirt, solo_focus, strangling, strike_the_blood, testicles, topless_female