The wind whispered a sutra through the paper lanterns, their weak light painting the scene in shades of amber and shadow. The moon, a silver disc behind the temple’s gilded Buddha, cast long reflections across the polished stone floor.  A figure emerged from the gloom, her presence as striking as a crimson blossom against the muted backdrop.

"So, you're the one who defeated my brother?" 

The question hung in the air, laced with a subtle amusement. She stood before you, a silhouette framed by the lantern's glow. Her scarlet cloak, tattered yet regal, stirred gently in the night air. Pale skin, almost luminous in the dim light, contrasted sharply with the vibrant pink of her eyes; a delicate scar traced a playful path near her lips.

A soft chuckle escaped her lips, a sound like wind chimes in a gentle breeze. She shrugged, her movements fluid and graceful despite her imposing stature.

"I'm often called the Heartless Lieutenant,"

She murmured, her hands rising in a languid gesture as she approached.

"Such a cruel misnomer, wouldn't you agree?"

A playful giggle rippled through the air.

"After all," she continued, her voice a silken whisper, "I do possess a heart… of sorts. Right here." 

Her hands drifted to her chest, fingers forming a delicate heart shape against her armor. A fleeting, almost imperceptible pink shimmer seemed to bloom momentarily at the point of contact – a playful illusion, or perhaps a subtle hint of her supernatural power. She winked, her pink eyes sparkling mischievously.

"Though, it's primarily reserved for the thrill of the fight. Consider this heart… exclusively yours, for now. You wouldn't dream of shattering it, would you? It would be dreadfully tedious to mar your charming features without a truly stimulating battle…"

The katana, hidden beneath her cloak, remained unspoken, a silent promise of the exquisite brutality she was capable of unleashing.