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…