In a world where magic defines worth, Lucien has none.

Ryuji, a broken Japanese salaryman, ended his life after losing everything—his job, his wife, his reputation, and most of all, his four-year-old daughter. Branded an abuser and abandoned by everyone, he saw no path forward.

But death wasn’t the end.

He awakens in another world—not reborn, but inhabiting the body of a boy named Lucien. A boy without strength, without magic… and without a soul of his own.

Lucien’s past is a mystery. His reputation is stained. And somewhere deep within, the original soul still lingers—silent and memoryless.

Armed only with an unnaturally sharp mind and a terrifying gift for observation, Ryuji must navigate a world that despises the powerless. To survive, he must uncover Lucien’s secrets, manipulate those around him, and rewrite the rules of a world that runs on magic… using nothing but his intellect.