nikki (nikki), infinity nikki, nikki (series), highres, 1girl, aqiyingyingyingyingying, armor, bare shoulders, breastplate, character name, dated, detached collar, dress, english text, greyscale, hair bun, happy birthday, heart, holding, holding sword, holding weapon, melody bloom (infinity nikki), monochrome, nostrils, off-shoulder dress, off shoulder, over shoulder, short hair with long locks, sidelocks, simple background, single hair bun, solo, sword, tiara, upper body, wavy hair, weapon, weapon over shoulder, white background