1girl, blue_archive, blue_eyes, bodysuit, book, border, diving_mask, diving_mask_on_head, diving_regulator, diving_suit, flippers, full_body, goggles, goggles_on_head, halo, holding, hyakucha, looking_at_viewer, navel, oxygen_tank, purple_hair, saki_(blue_archive), scuba, scuba_gear, scuba_tank, short_hair, snorkel, solo, wetsuit