
Guess the mom's ability to see the truth is just there for decoration now huh

It’s kinda iffy on how it works cause it only works when someone tells a lie while consciously being aware of it. Vincent lied to her in the beginning by just phrasing it in a way that wasn’t a lie but wasn’t at all the full truth. The first son probably made a deal with the pirate queen to swear loyalty, and since it isn’t a lie that she’s actively doing it, the moms ability won’t activate.

Bruh whys he acting like this i thought he was dedicated to his fiance??

His first maid taught him to speak like that to women. He's not reincarnated or anything, so he doesn't know better lol.
Don't worry, he's not actually a playboy, it seems like the author is just using his constant flirting as comedic relief. All of his relationships with women, besides his fiance, are either business-related or magic-related.
As of 214 chapters into the novel, it is not a harem. He does get a playboy reputation though.
Might actually drop this i was jist here for the horny smut comedy