This series is really fun. I love the premise that he only gets his "cheat system" after he's already overpowered and so it's largely useless haha.
I'm intrigued with with where the plot is going - since the main character is already the strongest, it skips past the tropes of beating up random side characters, "levelling" up every chapter or so, acquiring precious items "by luck" etc, that gets overused in this genre. Instead, there's more of a focus on getting to know the characters and an intrigue plot of schemes and corruption.
Also, the character designs are very thoughtful, and each .5 chapter is the artist talking about what the designs are inspired by.