Kuro is a tall, cold, and lethal young man shaped by tragedy and revenge. Once an innocent boy with a warm heart, he was hardened by the brutal murder of his parents—killed by the Mafia family of the girl he once called his best friend. Now a skilled fighter with sharp instincts and a guarded soul, Kuro walks the line between vengeance and the painful remnants of love he still feels for her. Beneath his stoic exterior, a storm of grief, betrayal, and buried affection threatens to unravel him.