Parking attendant Zhou Zheng guards the "3-yuan parking" toll booth, facing the repeated boundary-pushing and manipulation of thirteen factions including Xufeng Ji. He does not fight back aggressively, only coldly keeping accounts—every time you step, he records an inch. It turns out he has been plotting in secret for seven years, having long bought up the debts of all thirteen factions. After one collection after another, the thirteen factions settle accounts one by one, the mastermind Elder Yu reveals himself, and the younger sister finally understands the secret of her older brother's endurance. In the end, Zhou Zheng reclaims Xuchang Old Street, handing the iron box engraved with the character "Zhou", the thirteen sets of keys, and his father's abacus to his younger sister—"Home has been taken back. From now on, you guard it." A three-yuan booth guarded back an entire street and a home.