Siheyuan: Sign in at the Security Department, I Am Invincible

Su Jian crossed into the courtyard and became an orphan exploited by his beastly neighbors, activating the sign-in system. At the beginning, he obtained the Dragon Tiger Pill and a large amount of supplies. With his identity and peak strength in the Security Department, he was able to fight against the fool and blackmail the Jia family, leaving the three uncles speechless. Keep signing in and getting rich