rosetta (lapis re:lights), lapis re:lights, game cg, highres, official art, third-party source, 1girl, bare shoulders, blue hair, breasts, corset, cowboy shot, dot nose, dress, hair ornament, hairclip, idol, idol clothes, index finger raised, long hair, looking at viewer, medium breasts, open mouth, outstretched arm, red corset, red eyes, red ribbon, red wrist cuffs, ribbon, skirt, sleeveless, sleeveless dress, smile, solo, sparkle, transparent background, underbust, white dress, white skirt, wrist cuffs