He Inherited Ruin and Turned It Into Power

Colin Lestrange wakes up in the body of the eighth son of the Duke Protector. He is the family’s only remaining heir after his father and seven brothers die in battle. With his family on the brink of collapse, his grandmother forces him to take charge. He awakens a system and plays the role of a carefree wastrel on the surface while secretly investigating the deaths of his family members and dismantling his enemies.