Iron Heart is in deep pain due to the loss of his lover, and he gets drunk every day. Nian Ci saw it in his eyes, and it hurt in his heart. She summoned up the courage to expose Yang Kang's conspiracy to drop the letter, and the truth made Tie Xin sad and angry. In order to save the weak, they conspired with Huang Rong and Guo Jing. And what kind of conspiracy is hidden behind Yang Kang's actions?
In the waves of the rivers and lakes, the six monsters are known for their difficulty, and they unscrupulously obstruct the love road between Guo Jing and Huang Rong. Huang Rong was dissatisfied with this, and planned a sophisticated trap to lure the six monsters to a hidden cave in the mountains, and used Mei Chaofeng to try to thwart the six monsters at once. Guo Jing witnessed Huang Rong's move and was disappointed by his narrow revenge mentality, and he chose to fight side by side with the Six Monsters against Mei Chaofeng. At the critical moment of the life-and-death contest, Huang Rong had an epiphany that she couldn't let Guo Jing suffer more damage, and she decisively persuaded Mei Chaofeng to stop, so the six monsters escaped.
At the same time, Nianci infiltrates the heavily guarded palace to find the misunderstood ruthless and unrighteous Compassion. When the truth was revealed, Yang Kang secretly exchanged letters, causing the weak to be wronged, the weak resolutely decided to stop being patient and begged Nian Ci to take her to see Tiexin. However, in the face of tight defense, the two failed to escape from the palace, and they could only lie dormant until the time was ripe.
On the way back, Nian Ci happened to meet Yang Kang, who concocted a secret plan to deal with Yan Honglie with his incorruptible tongue, and successfully deceived Nian Ci. Back at home, Nian Ci did not reveal the true plight of the weak to Tie Xin.
On the other hand, Mei Chaofeng was entangled and painful in his heart because of Chen Xuanfeng's death. When she found out that the dagger in Guo Jing's hand was the murder weapon that killed her lover, she launched a frenzied attack on Guo Jing. In the fierce battle, the situation is changing rapidly and is thrilling. At the critical moment, Huang Rong disregarded her personal safety and stepped forward to block the fatal blow for Guo Jing and was seriously injured. Mei Chaofeng recalled in her madness the small kindness that Huang Rong had given her on Peach Blossom Island, but finally showed mercy to her subordinates and let Guo Jing and Huang Rong go. This move deeply touched Guo Jing, and he had a deeper understanding and gratitude for Huang Rong's deep friendship.
Tie Xin indulges in alcohol every day because of the loss of his lover, and he can't let go of the grief in his heart. Nian Ci saw that he was getting depressed day by day, and his heart was like a knife. Eventually, she mustered up the courage to expose Yang Kang's conspiracy to drop the letters. Tie Xin, who learned the truth, was filled with grief and indignation, and was determined to save the weak. Nian Ci knew that this trip was dangerous, so he discussed with Huang Rong and Guo Jing and tried to find the best rescue plan.
Yang Kang pretended to release the iron heart and cherish the weak, and let them live in seclusion in the deep mountains arranged by Huang Rong. However, Wanyan Honglie still couldn't let go of his thoughts of cherishing the weak, and he was full of sorrow every day. Qiu Chuji met Duan Tiande by chance and decided to take him to Niujia Village to avenge Xiaotian. Huang Rong and Guo Jing mistakenly thought that the opportunity in Qiu was not good for the people, so they rescued Duan Tiande. Unexpectedly, Guo Jing accidentally discovered that Duan Tiande was the enemy who killed his father. The trio then decided to escort him to the Iron Heart.
In the face of death threats, Duan Tiande had a clear conscience, and after seeing the essence of cherishing the weak and kind, he chose to confess the truth and expose the real murderer behind it. After hearing this, he was in pain and tried to commit suicide. In the midst of chaos, Duan Tiande took advantage of the chaos to escape.
Enraged, Qiu Chuji forcibly took Yang Kang away, intending to make him repent in front of Tie Xin. However, Yang Kang is cunning and eloquent and continues to deceive Nian Ci's sympathy. Huang Rong and Qiu Chuji had already gained insight into Yang Kang's nature and set up an ambush. Although Qiu Chuji tried his best to chase and kill, he failed to succeed. Tie Xin and Guo Jing arrived in time to stop the dispute. Seeing the situation, Yang Kang immediately pretended to repent and reformed, and everyone was blinded by his words for a while and forgave him.
Tie Xin and Yang Kang set off again to return to Niujia Village to find the weak, while Guo Jing and Huang Rong bid farewell to everyone and embarked on a journey back to Peach Blossom Island. During the journey, they met Hong Qigong, the leader of the beggar gang in Jiangnan, but the two did not recognize his true identity and only regarded him as an ordinary beggar. The elf and eccentric Huang Rong even teased Hong Qigong, playing constantly.
Later, they visited the Yue Wang Temple together, which coincided with Yue Fei's descendant Yue Wen reprimanding the local people for indulging in pleasure and forgetting the country's worries. Guo Jing was deeply touched and took the initiative to help the exhausted Yue Wen go home to rest. In another corner of the south of the Yangtze River, Ouyang Ke and Yang Kang quietly arrived, and their goal was to target Wu Mu's suicide note in Yue Wen's hand, a secret book that the Jin State had coveted for a long time, in order to achieve hegemony. When they learned that Yue Wen was going to dedicate his suicide note to the Song Dynasty emperor, they followed closely behind, and a battle over Wu Mu's suicide note began.