Siheyuan: the Lonely Young Man of the Fishing System Angrily Tore up the Fake Five Guarantees

Zhang Ang traveled through time and became an orphan in a courtyard. After his parents passed away, he was coveted by the best in the courtyard and his family property was coveted. In a desperate situation, he activated the fishing system in the heavens and obtained the marrow-washing fruit, martial arts secrets and the evidence of the deaf old lady's crime. He cleansed his bones and strengthened his body, wrote a report letter to expose the fake five-guarantee, toughened Jia Zhang, Sha Zhu and others, and relied on the system to counterattack and protect himself.