1girl, alternate_costume, ass, ass_focus, black_hair, blue_archive, blue_shirt, blush, book, breasts, collared_shirt, dark-skinned_female, dark_skin, from_behind, grey_background, grey_skirt, halo, hand_on_own_hip, holding, holding_book, huge_ass, karin_(blue_archive), large_breasts, long_hair, looking_at_viewer, looking_back, office_lady, pantyhose, parted_lips, pencil_skirt, ponytail, shirt, shirt_tucked_in, silver_bullet_(ecc12_8), simple_background, skirt, solo, sweatdrop, very_dark_skin, yellow_eyes