The Strongest Lord System, Starting with a Dog

Once Lei Yan, an outdoor survival expert, traveled through time and became the second son of a baron, he started in hell mode. The family only gave a knight a false title, plus a cursed swamp filled with miasma. Others started with thousands of troops, but he only had a rusty iron sword and a hungry old dog. Just about to become a dead soul in the swamp, the most powerful lord system has finally arrived—— "Ding, territory resource detected: silt." Lei Yan stared at the stinky mud and fell into deep thought...