3girls, bag, ball, beach, beach_towel, beach_umbrella, beachball, bikini, blush, bow, bowtie, bra, breasts, cat, chen, chen_(cat), cleavage, eyeball, flip-flops, flower, food, frilled_scarf, frilled_skirt, frills, hat, heart, heart-shaped_eyewear, heart_of_string, hoshiguma_yuugi, komeiji_koishi, komeiji_koishi_(the_excited_eyes_of_love), komeiji_satori, komeiji_satori_(the_girl_even_the_beachgoers_fear), looking_at_viewer, multiple_girls, navel, ocean, open_bag, open_mouth, outdoors, pink_bra, pink_eyes, pink_hair, pink_ribbon, pink_skirt, polka_dot, ribbon, ribbon-trimmed_collar, ribbon_trim, rose, rotte_(1109), sandals, short_hair, siblings, sisters, skirt, slippers, small_breasts, solo_focus, string, swimsuit, third_eye, touhou, touhou_lost_word, towel, umbrella, underwear, white_headwear