2girls, bikini, black_hair, blue_bikini, blue_eyes, breasts, cleavage, copyright_name, episode_number, feet_out_of_frame, frilled_bikini, frills, grey_background, gridman_universe, hair_ornament, hair_scrunchie, holding_hands, interlocked_fingers, large_breasts, light_purple_hair, long_hair, medium_breasts, multiple_girls, orange_eyes, orange_scrunchie, ponytail, sakiko_(oxab_b), scrunchie, shinjou_akane, shiny_skin, short_hair, side-tie_bikini_bottom, signature, sitting, smile, ssss.gridman, swimsuit, takarada_rikka, thighs, white_bikini