1girl, arms_behind_head, belt, blue_archive, blue_necktie, collared_shirt, etomai, exercise, formal, halo, letterboxed, looking_at_viewer, necktie, open_mouth, parted_bangs, purple_eyes, purple_hair, shirt, sidelocks, sit-up, solo, suit, sweat, two_side_up, white_belt, white_shirt, yuuka_(blue_archive)