The seventh day of food shortage in Constantinople. The defenders tore leather belts to satisfy their hunger. The leather belts were still bitter after being boiled. In the Senate Hall, the Ottoman envoy's dagger was nailed into the oak table, the handle still trembling: "Slaughter the city in three days, leaving no survivors." Zhang Pingyu was dragged out of the warehouse by the guards, because he was the only one in the city who could understand the secret Persian letter. He had a photographic memory, and he could carve twenty lines of letters into his mind at a glance - the letter contained the name of the traitor who was going to set fire to the granary tonight. He said nothing. That night, he took three robbers who were sentenced to death and paddled a leaky fishing boat to the Ottoman grain ship in the Golden Horn Bay. When the torch was poured with olive oil and thrown into the cargo hold, a voice exploded in his head: Shang Yang's remnant soul was possessed. "Yimu Lixin——" the old man sneered, "the morale of the army is broken, kill the deserters first, and then the nobles." The negotiations broke down three days later. The sultan's personal barracks pressed to a stone's throw outside the city, and the rain of arrows covered the sun. The senators collapsed on the ground and made the sign of the cross, while the Orthodox Patriarch prepared to raise the white flag. Zhang Pingyu closed his eyes, and when he opened them again, it was Cicero's soul - he read out the secret agreement of the Merchant of Venice in ancient Latin in front of everyone, word for word. The 100,000 onlookers understood the words "sell the city", "gold coins" and "capture the elders alive", and the sound of swords drawn was heard in the square. Only one day left in the countdown. He stood at the gap in the Theodosian wall, with the Ottoman artillery position behind him, and in front of him was the last crossing slot that the system popped up. He wants to bet on the destiny plundered by all dynasties and let the fire of Byzantium burn through this doomsday.