4girls, beach, benghuai_xueyuan, black_dress, black_hair, blue_eyes, bow, breasts, crossover, dress, hair_bow, honkai_(series), houraiji_kyuushou, long_hair, multiple_girls, ocean, outdoors, parasol, polka_dot, purple_hair, senran_kagura, short_hair, sirin, sitting, smile, summer, swimsuit, twintails, umbrella, white_bow, white_dress, yellow_eyes, yumi_(senran_kagura)