Like when vice-captain Shen, usually dominant person, who isn't aware of protags OPness lets him dismiss her and acts like a meek sheep when he wants to fight against an elite assassin. That's not how dominant protective commanders work. Behaviour consistent with her character would be her pulling him down from the stage and b*tchslapping him, for acting arrogant when his martial arts [at least as far as she knows] aren't worth shit. But no, she's only strong-hard dominant woman when it's needed for slapstick comedy, but when sh*t gets serious, she's a meek submissive doll.
But hell, it's still better than when protag is still hiding his powers when there's a danger to lives of his companions. If not for author scripting a plot armours for them, most of his friends should be dead already. You cannot convince me that protag is smart, sly and scheming when he's not doing anything to protect people he cares about. It's obvious he cares about them enough - he once technically revealed his ability[speed] when he thought his friend trap totally not a girl and totally not a princess Su died. Just when he knows that author has his back, and nothing will happen to them, he'll rather remain pretending then interfere. After all, it's not like those assassins could kill people he cares about when the author has them covered. And plot needs him to still hide his skills, so he can leave their safety to the author.

More bad things are the reuse of bad guys... this is sh*t and always will be sh*t anywhere it is used especially when it comes to medivalish times where people are in fact more likely to kill off rebels and the like than today. This is especially true when it comes to their own family!!! So to write in villains but not kill them due to crappy projections of the author onto his characters is garbage.

P.S. Almost forgot, for a MC who is so fast as to be unseen to be unable to get away for plot purposes is dumb. Just saying, the Flash can be right in front of you and you might not even register him if he doesn't want you to.

MC's relationship towards women is so-so but MC relationship towards man is so annoying I often wonder is this novel BL? The trap like man is always flirting with MC. Then their is MC's childhood friend that is also his aunt and MC, author often give a hint that their is a deeper relationship towards the two of them but for crying out loud that girl barely make an appearance in the novel.

Then their is this world movement event which also revolves around MC, author is like lets insert this blah blah blah then we return back to MC, it's a very very very waste of chapters you are like force to read a bunch of nonsense. I doubt if this chapters will ever affect the MC why must this bad habit always appear in every novel. Is this like an authors disease where they must put or write a useless chapter out of nowhere that has no connection to the main story?

Another annoying part of this novel is the MC saves the day plot, like all hell break lose and MC was drag and force to save the day. It happens once it's ok, but repeating it over and over again is kind of annoying it makes everything predictable. It feels like MC was just their to make an ending every chapter.

and chooses to serve the emperor for a easy 'retirement', but can't be bothered to do his job competently which jeopardizes retirement in any position