2girls, alternate_costume, arknights, astesia_(arknights), astgenne_(arknights), backless_dress, backless_outfit, bare_arms, bare_back, bare_shoulders, black_dress, blue_eyes, blue_hair, dress, goggles, goggles_on_head, hair_intakes, liliyfox, long_hair, looking_at_viewer, multiple_girls, ponytail, puffy_short_sleeves, puffy_sleeves, short_dress, short_sleeves, siblings, sidelocks, sisters, smile, very_long_hair, water, white_dress