The Super Abandoned Son-in-Law: God of War

Cao Xiaofan, a young overseas weapons engineer, was on a flight back to China when it crashed. By chance, he transmigrated into the body of a son-in-law to the princess of the ancient Great Xia Kingdom. After his transmigration, the mysterious System that had accompanied him was activated. Unlimited weapons and equipment! Plenty of ammunition! This son-in-law had been cuckolded by the princess without daring to say a word, and could only silently endure the empress's provocations. But now Cao Xiaofan had arrived, and everything changed. He builds modern weapons and sweeps across the world! The princess cheated on him? Divorce her! There are plenty of women out there! The emperor and empress give him trouble? Overthrow them! He'll take the throne himself and rule the land! Once the son-in-law they cast aside, now a God of War!