As a time traveler, Zhang Ze considers his experience quite fulfilling.
He's explored new territories, led revolts, practiced ancient cultivation methods, honed his skills through pill consumption, attempted strategy games, and can be considered well-rounded.
Moreover, due to some unexpected stroke of luck, he crafted a system that left him a legacy to enjoy for millennia.
The system is quite quirky, but it has all the necessary functions, including nonsensical tasks and daily intelligence...
Though most of it is almost made up, of course.
If there's anything he regrets, it's that he hasn't yet experienced the popular trope of modifying cultivation entries.
Zhang Ze really wants to try the gameplay of altering others' entries.
For instance, changing [Ox Demon's Power] to [Cow and Horse Power], or turning [Innate Medicine God Saint Body] into [Innate Medicine Girl Saint Body]
As a means to toy with others.
