Regressor, Possessor, Reincarnator Novel

Allen discovers a devastating truth while opening a book: his brother Julius has been possessed by someone else. Julius Reinhart, originally a young prodigy in their declining noble family, is no longer the person Allen knew. The family, desperate to save their falling status, ignores the dramatic changes in Julius's behavior, unaware of the possession. Driven by a desire to save his real brother, Allen makes an extraordinary choice: he regresses back in time to change their fate. As Allen navigates this second chance, he struggles with his hatred toward the possessed impostor wearing his brother's body, yet remains determined to undo what has happened. The story unfolds with complex layers as multiple characters—including a transmigrated reader and a reincarnated individual—become entangled in this struggle for redemption and truth, creating an intricate web of possession, regression, and reincarnation across different timelines and identities.