legendary side character

Somewhere in this vast world, there are beings that have surpassed the set limits of natural order and have embarked on the limitless journey. Such is the Dorman cosmos, where cultivation , magic and superhumans are the way of life. Ruled by a powerful being , the region is peaceful and prosperous. But suddenly mysterious characters arrive in the cosmos to create disorder and disrupt the peace. It equipped them with powerful systems, or past knowledge, there are also some reincarnators and time travellers. To counter them, the monarch sends his personal disciple on a mission. A mission to eliminate all of them!