Walk Low-Key in the Heavens

Yang Xian obtained a treasure that could take him through time, but other than time travel, he couldn't do anything. There are also limitations to time travel. First, as an outsider in a different world, small trends can be changed, but major trends are irreversible. Second, the force used to travel through the world is up to 100 times that of the host. Third, don't take away a single piece of wood. Yang Xian was speechless, isn't this, gently I am coming, gently my breasts, waving my sleeves without taking away a single cloud! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.