2girls, animal_ears, atelier_(series), atelier_lydie_&_suelle, bikini, blush, bow, bowtie, breasts, cat_ears, earrings, flower, frilled_bikini, frills, green_bikini, hairband, holding, holding_water_gun, hydrangea, jewelry, kuromame_(honey_728), long_hair, looking_at_viewer, lydie_marlen, multiple_girls, open_mouth, pink_eyes, pink_hair, purple_bikini, short_hair, siblings, sisters, small_breasts, smile, suelle_marlen, swimsuit, twins, upper_body, water_gun