momo (nikki), nikki (nikki), nikki (series), shining nikki, artist request, highres, official art, second-party source, 1girl, ahoge, animal, bare arms, bare shoulders, blush, bow, bowtie, brown eyes, bud, cat, chibi, cloak, clothed animal, double bun, ear covers, fins, fish, fish tail, flying sweatdrops, goldfish, hair bun, happy, head fins, hood, hood up, hooded cloak, lily pad, long hair, looking at animal, mermaid, monster girl, monsterification, notice lines, pink hair, red bow, red bowtie, red tail, ripples, shadow, shawl, swimming, tail, traditional bowtie, very long hair, wavy hair, white cat, yellow cloak, yellow shawl