1girl, black_one-piece_swimsuit, blush, casual_one-piece_swimsuit, closed_mouth, crown, finana_ryugu, finana_ryugu_(1st_costume), fins, flower, green_hair, hair_between_eyes, hair_flower, hair_ornament, hand_up, head_fins, hikari_niji, long_hair, looking_at_viewer, mini_crown, nijisanji, nijisanji_en, one-piece_swimsuit, pink_flower, pink_rose, purple_eyes, rose, smile, solo, swimsuit, swimsuit_under_clothes, very_long_hair, virtual_youtuber, wrist_cuffs