2girls, arms up, beach, beach chair, beach towel, beach umbrella, bikini, blue bikini, blue bow, blue bra, bow, bra, breasts, checkered bikini top, cleavage, curly hair, dress, eyeball, flower, frilled dress, frilled skirt, frills, green bow, green eyes, green hair, hair flower, hair ornament, hat, heart, heart of string, holding, holding towel, komeiji koishi, komeiji koishi (the excited eyes of love), komeiji satori, komeiji satori (the girl even the beachgoers fear), looking at viewer, medium breasts, medium hair, multiple girls, navel, official art, one eye closed, open mouth, rose, sandals, siblings, sisters, skirt, smile, standing, standing on one leg, starfish, string, sun hat, sunset, swimsuit, third eye, touhou, touhou lost word, towel, transparent background, umbrella, underwear