cyfrost, crimson phoenix (shining nikki), snowy ballad (infinity nikki), infinity nikki, nikki (series), blue gem, chinese commentary, commentary request, highres, 2girls, absurdly long hair, bare shoulders, beads, black choker, black dress, black halo, black sleeves, black wings, blue background, blue hair, blue shawl, blue shirt, blue skirt, chibi, choker, circlet, coattails, colorful background, couple, covered eyes, detached sleeves, dress, feather-trimmed dress, feather-trimmed sleeves, feather choker, feathered wings, fins, forehead jewel, gem, hair beads, hair ornament, halo, hand on own cheek, hand on own face, happy, head fins, head wings, heart, holding hands, jewelry, long dress, long hair, long sidelocks, long skirt, long sleeves, mermaid costume, multiple girls, necklace, pendant choker, pleated dress, pleated skirt, red background, red hair, shawl, shirt, sidelocks, skirt, spiked halo, spread wings, strapless, strapless shirt, striped clothes, striped shirt, tailcoat, very long hair, wavy hair, white background, wings, yuri