Starting as a Playboy, I Sign In

Lin Ye transmigrates into the heir of the Prince of Zhennan, then activates a sign-in System. He quietly signs in and builds up his strength for more than a decade, becoming a master of unfathomable martial arts. Unfortunately, there are experts everywhere around him, so he never gets a chance to fight. He has no choice but to take his minions around to sign in everywhere, while doing the things a wastrel is supposed to do.