My Golden Eyes See Your Death

My parents were slaughtered, victims of a monstrous serial killer leaving grotesque symbols. Society expects grief, revenge. But I'm Kuramime Ryuka, an 11-year-old whose emotional system is broken, leaving me with only cold, calculated logic. Good thing I possess the 'Golden Eyes of Future Vision.' I see every possible outcome, every movement, every kill before it happens. This isn't about vengeance; it's about efficient obligation. And my initial target, the powerful Liangyi family's heiress, isn't the killer...or at least, not all of her is. Now, I'm using her own family's underworld connections to hunt a supernatural entity that frames innocents. But what happens when the killer I seek is literally a part of her?