So, this novel is about a man transmigrated to be young master. He is accept a disciple which is someone op from the future. If I'm not wrong, the disciple is a girl, the one who became the destroyer of the world or something. Then he is accepting another one which is The Returner from the future. Oh right, he is also made a troops of lesser mc and an intelligent army with the goals to find mc.
I'm pretty sure you are talking about Arrogant Young Master Template A Variation 4. Hope, that it someday comes off hiatus