1girl, blue_archive, breasts, close-up, gym_shirt, gym_uniform, hasumi_(blue_archive), hasumi_(track)_(blue_archive), head_out_of_frame, huge_breasts, impossible_clothes, impossible_shirt, jacket, mitsuru_(pixiv_34028718), official_alternate_costume, partially_unzipped, shirt, solo, track_jacket, zipper_pull_tab