This serie seems really made to promote chinese tradition, is almost like a propanganda work, MC should be a OP as fuck immortal but he only uses wordly techniques he learned after getting on Earth.
He defeated the mutants not with his original powers but with Tai-chi and Qi bullshit, most chinese people he encountered are super polite and even the bad guys have some honor, only the mental invader got defeated from something else, his aura.
MC had some close fights but still kept using his new martial arts, and the new syle is another old chinese one.
Even the plot is not very good, jumping from a thing to another, and the heroines make no sense, could have made him stick to one as the pseudo harem he got seems half forgotten, he bought a new house and got the 3 beauties he found when he was renting a room, but aside that there is no progress.
The secret agency and the girl that recruitem them barely appear anymore, and his research for the artifacts is almost a filler chapter, didn't even try to use a immortal skill to localize or tag the one he found at the auction, damn he could probably use the spy agency to search the new owner.