Episode 15 recap: Canaan Academy took in Xiao Yi Xian and bestowed upon Xiao Yan the teachings of Yan Fire, a new fighting technique.

Bai Cheng had arranged his trusted subordinates in the tower beforehand and instigated the premature outbreak of Xiao Yi Xian's Calamity Poison Body. A catastrophe was about to descend in an instant, causing everyone to panic. The dean arrived upon hearing the news and severely reprimanded Xiao Yan, criticizing him for disregarding the safety of Canaan Academy and treating his words as if they were nothing. Then, turning his attention to Bai Cheng, the dean scolded him as well. Did Bai Cheng think that by making Xiao Yan experience the pain of losing loved ones through prematurely triggering the Calamity Poison Body of Xiao Yi Xian, it would soothe his hatred in his heart? At that moment, the sound of a safe report came from inside the tower, indicating that Xiao Yi Xian's poison body had not erupted, leaving everyone astonished.

Inside the tower, She Cai Lin was mobilizing the solidification space at the Dou Zong level to buy time for Xiao Yi Xian. She knew that as long as Xiao Yan learned that Xiao Yi Xian's Calamity Poison Body hadn't erupted, he would calm down. Indeed, when Xiao Yan saw that Xiao Yi Xian was safe and sound, he spoke loudly to everyone, expressing his own views. He recalled being hunted by the Yunlan Sect, treated as an ominous existence just like the Calamity Poison Body, but Canaan Academy did not reject him from a distance. Instead, they accepted him and helped him fulfill his wish by lending him the power of the Heavenly Flame.

It was because Canaan Academy upheld its own sense of justice, neither refusing the talented nor abandoning those in dire straits. That's why, when Xiao Yi Xian's Calamity Poison Body was about to erupt, the first place he thought of going back to was Canaan Academy. Xiao Yan stated that he believed Canaan Academy would accept Xiao Yi Xian just as they had accepted him. His words moved the people present, and the dean revealed that there was a cure for the Calamity Poison Body, but it was extremely difficult to find, and the world believed it was incurable.

The dean was moved by Xiao Yan's words and agreed to temporarily keep Xiao Yi Xian inside the tower. Xiao Yan needed to quickly go and search for the Bodhi Transformation Saliva. The dean entered the tower, met with Xiao Yi Xian, and learned that she had forcibly retracted the poison gas for the safety of the tower. He was also touched by her actions. He warned the disciples present that they were able to leave safely all thanks to Xiao Yi Xian's forbearance and cautioned them not to act recklessly in the future.

Xiao Yan bid farewell to Xiao Yi Xian and She Cai Lin, preparing himself to embark on the search for the Bodhi Transformation Saliva. She Cai Lin reminded him to be cautious since she wouldn't be by his side.

Bai Cheng was filled with dissatisfaction and proposed to have a duel with Xiao Yan. Xiao Yan stated that he would return to face Bai Cheng after finding the medicine. Just then, Mu Gu suddenly arrived at Canaan Academy, declaring his intention to capture Xiao Yan. Xiao Yan said he was actually looking for Mu Gu and didn't expect him to come knocking on the door himself. The dean realized that Mu Gu had already reached the pinnacle of the Dou Zong level, while he himself was a Dou Huang, and Xiao Yan was a Dou Wang. It was not a favorable battle today, but Xiao Yan gritted his teeth and insisted on fighting. He flew up and engaged in a fight with Mu Gu. However, Mu Gu wielded the Soul Chain, enveloping Canaan Academy in a dark mist. The dean hurriedly led the elders and disciples of Canaan Academy to confront the situation, while inside the tower, Xiao Yi Xian's poison body became unstable due to the invasion of the black Dou Qi.

Xiao Yan utilized the Fallen Heart Flame and the Green Lotus Core Flame to fight against Mu Gu. However, he still couldn't control the fusion of the two properly, resulting in repeated setbacks. Mu Gu also noticed Xiao Yan's deficiency in using the different fires and became arrogantly self-assured. At this moment, a voice reached Xiao Yan's ears, scolding him for not understanding the characteristics of the Fallen Heart Flame and treating it like any other different fire. Xiao Yan was already frustrated with the current situation, and the incessant voice added to his annoyance. The voice demanded that he come down. Unable to resist, Xiao Yan uncontrollably rushed towards the bottom of the tower, surprising Xiao Yi Xian and She Cai Lin.

Seeing Xiao Yan being defeated, the dean urgently summoned the nine elder guardians to form a formation and confront Mu Gu. Mu Gu laughed heartily upon seeing this, claiming that the Dou Qi of nine Dou Wangs would be offered to the Soul Hall today. Xiao Yan reached the bottom of the tower, where there was volcanic magma. A white-robed old man sacrificed himself, and Xiao Yan learned that he was the true master of the Fallen Heart Flame, Yao Tian Huo. Xiao Yan was eager to go out and face the enemy, but the old man insisted on keeping him there for training. The old man even said that if Xiao Yan wanted to leave, he had to ignite himself with the Heart Flame. Unable to bring himself to harm the old man, Xiao Yan prepared to ignite himself. Touched by this, the old man bestowed him with a set of combat skills and entrusted the entire Fallen Heart Flame to him.

She Cai Lin descended to the underground and found that it was filled with fiery energy, but Xiao Yan was nowhere to be seen. Anxious, Xiao Yi Xian rushed out of the tower to confront Mu Gu. Mu Gu was struck by the Calamity Poison Blood, but the dean knew that Mu Gu could absorb and transform the poisonous blood. He then switched with Xiao Yi Xian, but ended up being seriously injured by Mu Gu.

At that moment, Xiao Yan rushed out just in time.