Episode 19 recap: Gong Zi Yu embarks on the third trial and successfully breaks into the underground prison to rescue Yun Wei Shan.

Yun Wei Shan was captured and taken to the dungeon, with Gong Shang Jue gripping her neck. At that moment, a guard arrived with a message that Jin Fan, under the orders of the executioner, had brought chicken soup for Yun Wei Shan. Gong Shang Jue released his grip, suspecting that it might be chicken soup laced with Bai Cao Cui. Gong Zi Yu developed genuine feelings for her and was willing to endure the pain himself in order to give her the antidote. He was afraid that she might be forced to confess under the influence of the poisoned soup, so he held onto the chicken soup. Gong Zi Yu then arrived at the old executioner's study and discovered a silk pouch beneath a sharpening stone. It was a silk pouch left for him by the previous generation of "Zhi Ren."

Yun Wei Shan was thrown into the dungeon due to a lack of concrete evidence. As per the elder's command, Gong Shang Jue couldn't torture her, but he decided to harm her with poisoned wine instead. At this time, Jin Fan brought chicken soup to the dungeon. Yun Wei Shan admitted that she was a member of the "Wu Feng" group, which caused Gong Zi Yu to develop hatred towards her, as his mother and younger brother had both died at the hands of the Wu Feng group. He even confiscated the chicken soup brought by Jin Fan.

Xue Gong Zi pretended to visit the mountains multiple times and was scolded by Xue Zhong Zi, but he was actually curious about the mountains. He asked Xue Gong Zi what was interesting about the mountains and expressed concern for Gong Zi Yu's safety. Xue Gong Zi understood his intention and mentioned that Zhi Ren was in danger and needed their help. Xue Zhong Zi immediately put aside his arrogance and happily accompanied Xue Gong Zi to the mountains. They coincidentally encountered Gong Zi Yu discussing the plan to rescue Yun Wei Shan with Jin Fan. Xue Zhong Zi offered to assist them and reminded them of the promise they made when they were children to visit the mountains.

However, how could they obtain the gunpowder from Gong Zi Shang for the prison break? Xue Zhong Zi went to Gong Zi Shang's research base and encountered Hua Gong Zi from the Wind, Fire, Snow, and Moon four major families. Gong Zi Shang only then learned the true identity of Little Hei. Xue Gong Zi received the gunpowder and embarked on a great mission together with Hua Gong Zi.

Gong Shang Jue sensed someone approaching the dungeon and discovered the mysterious person from years ago. They brought the gunpowder to a remote wilderness, but upon hearing unreliable information about bribing the guards, they decided to retreat. In order to keep Gong Zi Shang, Jin Fan spoke affectionate words, and Gong Zi Shang immediately displayed a heroic aura as if ready to die in battle. Yun Wei Shan was kidnapped, and Gong Shang Jue arrived to pursue them. The group resisted Gong Shang Jue and Gong Yuan Zheng. Xue Zhong Zi and Xue Gong Zi also joined the fight. In the end, Gong Shang Jue was defeated by the three of them, and Gong Yuan Zheng, injured, took his brother and fled back to the Jiaogong Palace.

Shang Guan Qian treated Gong Yuan Zheng's injuries, but he showed no concern for her feelings. Learning that she was a descendant of the Lonely Faction, he never expected that members of the same clan would fight against each other for a Wu Feng member like Yun Wei Shan. Shang Guan Qian unintentionally learned from Gong Yuan Zheng that Gong Shang Jue's severe injuries were due to an internal power issue. She verified this information through a maid, who confirmed that every half month, Gong Shang Jue would dismiss all the guards and only keep Gong Yuan Zheng by his side.

Lady Wu Ji had reached an agreement with Shang Guan Qian before. She would help Shang Guan Qian kill Gong Shang Jue and revealed that he had no internal power for two hours every half month. Once she killed Gong Shang Jue, she would be able to obtain what she desired from the mountains. Shang Guan Qian struggled internally as she had to complete the mission but also had feelings for Gong Shang Jue.

Gong Zi Yu earnestly practiced the Xue Family's sword techniques in the mountains. He couldn't comprehend the essence of the technique until he unintentionally found the secret left by his father in Old Zhi Ren's room. Gong Zi Yu bid farewell to Lady Wu Ji, carrying his luggage. She decided to reveal her true identity to him when he returned.

Gong Zi Shang pinched Xue Zhong Zi's cheek and reprimanded them for being so ruthless towards Gong Shang Jue. Xue Zhong Zi and the others pleaded with the elders to help Gong Zi Yu. Meanwhile, Gong Zi Yu went to the mountains to train, clearly buying time. Gong Shang Jue realized that all the members of the Xue Family, even the entire mountain, were supporting Gong Zi Yu, leaving him outnumbered.

Hua Zhang Lao warned Gong Zi Yu that the third trial was no small matter, and many had failed at this stage. Gong Zi Yu took a liking to Yun Zhi Yu's sword and would become its owner if he succeeded in the trial. Yun Wei Shan woke up, and Yue Zhang Lao advised her to leave the palace gates. She also understood that she couldn't marry Gong Zi Yu due to her identity.

Gong Zi Shang was scolded by his father and felt that he would be better off taking care of his younger brother and revitalizing the family instead of following Yu Gong's every move. Shang Guan Qian learned that Gong Shang Jue's fondness for white flowers was because of Lang, his younger brother. In the past, their mother and Lang died at the hands of Han Ya Qi. If it weren't for Gong Yuan Zheng's late arrival and the opening of a secret passage, Lang wouldn't have had the chance to escape and wouldn't have been killed. Gong Yuan Zheng has been feeling guilty about it ever since.

Shang Guan Qian expressed her desire to make Gong Shang Jue happy, but her efforts were futile. However, Gong Yuan Zheng noticed that Gong Shang Jue had changed since Shang Guan Qian's appearance. Despite his cold demeanor, he cared about her internally. Hua Gong Zi specially requested for Jin Fan to assist Gong Zi Yu in overcoming the third trial. Gong Zi Yu, unaware of the requirements of the third trial, thanked Jin Fan for his assistance, unaware that the trial required a personal guard as a sacrifice, using a living soul.