My Cousin and I Traveled Through Time

My cousin and I jumped off a cliff one after another, and unexpectedly entered a time and space tunnel. Unexpectedly, we arrived at the end of the Ming Dynasty and the beginning of the Qing Dynasty. As a modern person, I am well aware of the corruption of the Manchus and the crimes and evils of the Japanese, so I decided to establish a new dynasty, destroy Japan, and rewrite history!