The MC feels really ruthless for no good reason. Selling off traitors who stole his money is one thing, but then in the next arc he'll go to a village where they are being plagued by bandits. He'll reveal at the end that the last time he knew they were scamming him and that this time they lied about the number of bandits and the spoils of the bandits, and then the chief and his wife tried to poison him to steal his stuff. It makes sense to punish them, but then he just goes and rips out the man's right eye in front of his daughter. That's just cruel for no good reason. The village chief was also ridiculously stupid and literally fell for a scam where he bought geese that he thought would lay golden eggs. The author passes it off as the MC being surprised when it's literally true, but it doesn't feel like a good joke and would have been better served to have a proper scam.
Later it's also revealed that Tania actually truly loved MC and only ran off with the money because she got addicted to gambling due to following the other guy around to try and stop him from gambling. It kind of makes sense but still feels contrived that she'd just run off instead of begging the MC for help. It's not like it's impossible to justify, but it didn't feel well done with the explanation, which makes it feel like a plot hole even though it technically isn't.
The story also has him realising he'll become the greatest Seeker by using others. So the title is quite literally about running the greatest clan. No hidden secret class or forging a new path as a Talker. If that's what you want I guess it's decent, but it definitely doesn't live up to what the premise seems to be about. It also goes all mafioso with the MC being extremely ruthless in order to gain power, which leaves a bad taste in my mouth due to how unnecessary it seems at times and it isn't interesting enough as a mafia thriller story to look past it.
Overall I'd rate it about a 6.5/10.