Thiên Thần Đối Đầu Bốn Kẻ Thù

A dramatic vertical anime fantasy key visual featuring [an innocent white-haired angel girl] in the foreground, with exactly four dark enemy characters arranged behind her. Composition: tall smartphone wallpaper layout, 9:16 aspect ratio, Japanese light novel cover illustration style, sharp detailed linework, glowing particles, no text. Foreground subject: centered waist-up portrait of the angel girl facing forward with a delicate, serene presence. She has long flowing white hair, pale skin, a small white flower hair ornament near one ear, a loose white ruffled dress with short puff sleeves, a pale lavender waist ribbon, and large pure white feathered wings spread wide to both sides, accented by ethereal white rim lighting. Background enemies: exactly four villainous gothic-fantasy figures arranged in a layered semicircle above and behind her, gazing forward with menacing, hostile expressions: - Upper left: a tall dark-haired man in a black high-collar gothic military coat with chains and red accents, gloved hand near his mouth. - Upper right: a pale lavender-haired gothic woman wearing an ornate frilled dark headdress and black-and-purple dress with crimson rose accents. - Middle left: a silver-haired young man in an ornate white coat with a fur-trimmed shoulder cape and gold chains, holding a glowing crimson magical orb. - Middle right: a blond noble man in a black-and-white outfit with gold epaulets and a red sash, hand raised to cast magic. Environment & lighting: a swirling backdrop rendered in [deep crimson, black, and glowing red], filled with dark nebula smoke, blood-red magical energy rings, ember sparks, and floating orbs, creating a striking contrast between pure angelic white and demonic crimson darkness.