After dying in an unexpected accident, Kim Yohan is reincarnated as Johan Aitz of the prestigious Aitz family. Despite being born a noble, Johan ranks dead last within his own household. To make matters worse, this world is a harsh and brutal medieval era. “The only one you can trust is yourself.” To survive in this law-of-the-jungle world, he needs money and power! While training relentlessly using the knowledge from his modern-life days, Johan encounters Kaegal, the Master of Poison from the empire’s greatest assassin guild—the Nesos Guild…