According to the information you have provided, the plot of Xiao Yan and Nalan Yanran meeting at the Heaven Mountain Blood Pool is from 'Battle Through the Heavens'. However, this is not the plot of the original novel, but the plot of the derivative work' Battle Through the Heavens 'written by the online author Tian Can Tu Dou,' Battle Through the Heavens's Supreme Realm'. In 'Battle Through the Heavens-The Supreme Realm', Xiao Yan and Nalan Yanran met at the Heaven Mountain Blood Pool and had some interaction. In the novel, Xiao Yan headed to Heaven Mountain in order to search for the treasure in the Heaven Mountain Blood Pool while Nalan Yanran headed to Heaven Mountain in order to search for the Heaven Mountain Snow Lotus. Xiao Yan and Nalan Yanran encountered some danger in the Heaven Mountain Blood Pool. However, they worked together to overcome the difficulty. During this process, the relationship between Xiao Yan and Nalan Yanran gradually eased. They began to get to know each other once again. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!

" Nalan Yanran's Heaven Mountain Blood Pool " was a plot from Battle Through the Heavens. In the novel, Nalan Yanran entered the Heaven Mountain Blood Pool in search of the Heaven Mountain Snow Lotus. She found a blood kirin at the bottom of the pool and obtained its inheritance. In online literature, the Tianshan Blood Pool was usually a mysterious place. There might be hidden treasures, martial arts manuals, or divine beasts. This plot was also used and imitated by other web novels. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
In the novel 'Battle Through the Heavens', Xiao Yan and Nalan Yanran met at the back. After Nalan Yanran went to the Xiao clan to cancel the engagement, Xiao Yan relied on his own hard work to become a powerful Dou Zhe. Xiao Yan and Nalan Yanran met by chance in the desert. At this moment, Nalan Yanran was no longer the arrogant lady from back then. Xiao Yan was also no longer the young man that she looked down on. After the two of them met, Xiao Yan did not take revenge on Nalan Yanran. Instead, he returned evil with good and helped Nalan Yanran resolve some of her difficulties. Since then, Nalan Yanran's view of Xiao Yan had changed. She began to re-examine her decision back then. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan and Nalan Yanran had met in the subsequent plot of the novel 'Battle Through the Heavens'. In the novel's chapter 340, Xiao Yan and Nalan Yanran met at the Magic Beast Mountain Range. Nalan Yanran apologized to Xiao Yan and expressed that she was willing to help him find the 'Heavenly Flame'. In the novel's chapter 386, Xiao Yan and Nalan Yanran once again met in the desert. Nalan Yanran helped Xiao Yan resolve some problems and told him some information about the 'Heavenly Flame'. In the novel's chapter 399, Xiao Yan and Nalan Yanran met at the Jia Nan Academy. Nalan Yanran helped Xiao Yan enter the Inner Academy of the Jia Nan Academy and provided assistance during the battle between Xiao Yan and Han Feng. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan and Nalan Yanran were both characters in the "Fight Through the Heavens". The relationship between them was the Young Sect Leader of the number one sect on the Dou Qi continent, the Misty Cloud Sect, Nalan Yanran. She had once sent an annulment letter to the Xiao clan. After that, Xiao Yan met Nalan Yanran once again at the Jia Nan Academy. The two of them engaged in a battle. Xiao Yan completely defeated Nalan Yanran and once again set a three year agreement in front of Nalan Yanran's grandfather. Hurry up and click on the link below to return to the super classic original work," Battle Through the Heavens "!
Xiao Yan had stayed in the Heaven Mountain Blood Pool for around three years. Xiao Yan had exited the Heaven Mountain Blood Pool in Chapter 1319 of 'Battle Through the Heavens'. At this moment, three years had passed since he had entered the Heaven Mountain Blood Pool. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
In the online novel 'Battle Through the Heavens' that was published on Qidian Chinese Network, Xiao Yan was reborn as Nalan Yanran. The novel was written by online author Jing Wuhen and was a sequel to Battle Through the Heavens. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
In Battle Through the Heavens, Xiao Yan and Nalan Yanran were a young couple who had once been engaged. In the novel, Nalan Yanran was a disciple of the Misty Cloud Sect and also Xiao Yan's fiancée. However, after Xiao Yan became trash, Nalan Yanran raised a request to break off the engagement. This action caused Xiao Yan to feel extremely humiliated and furious. It also stimulated his determination to train hard. In the subsequent plots of the novel, the relationship between Xiao Yan and Nalan Yanran changed many times. They used to be enemies, but they also worked together later on. In the end, Xiao Yan obtained victory in his battle with Nalan Yanran and canceled the engagement between them. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
"Battle Through the Heavens" comic, Xiao Yan VS Nalan Yanran appeared in the 129th chapter of the comic,"The Three Year Agreement". The three year agreement was a duel that Nalan Yanran had proposed to Xiao Yan in order to regain her reputation after she broke off the engagement. This duel was held in the Magical Beast Mountain Range. Nalan Yanran used the rank 3 magical beast, the Amethyst Winged Lion, as the wager. The loser had to give the other party a gold coin. During the duel, Xiao Yan used the Angry Buddha Lotus Flame and defeated Nalan Yanran. This duel had also caused Xiao Yan's name to soar on the Dou Qi continent. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
In 'Battle Through the Heavens', Nalan Yanran was the Young Sect Leader of the Misty Cloud Sect and was also Xiao Yan's ex-fiancée. She was born in the Nalan family of Wu Tan City. She was a proud and self-respecting woman. The engagement between Nalan Yanran and Xiao Yan was set by the elders of both parties. However, three years after Xiao Yan became a trash, Nalan Yanran came to his door and proposed to break off the engagement. This caused Xiao Yan to feel extremely humiliated. During the engagement annulment ceremony, Xiao Yan and Nalan Yanran had a match. Xiao Yan used his outstanding performance to defeat Nalan Yanran and successfully defended his dignity. Even though Nalan Yanran once had a prejudice and misunderstanding towards Xiao Yan, after experiencing a series of events, she gradually recognized Xiao Yan's talent and potential and developed a feeling of admiration towards him. In the subsequent plots of the novel, Nalan Yanran helped Xiao Yan many times and the two of them gradually became friends. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan and Nalan Yanran's engagement was finally called off. In the novel 'Battle Through the Heavens', Nalan Yanran was once Xiao Yan's fiancée. However, in order to borrow the power of her clan, she came to break off the engagement with Xiao Yan during the three year agreement, causing Xiao Yan to become a laughing stock. Hence, Xiao Yan made a three year agreement with Nalan Yanran. On the appointed day, Xiao Yan defeated Nalan Yanran and successfully cleared his name. Later on, Nalan Yanran realized how childish her previous actions were. She was filled with admiration and gratitude towards Xiao Yan. Hence, she apologized to Xiao Yan and asked him to forgive her. Although Xiao Yan was dissatisfied with Nalan Yanran's actions, he also understood that Nalan Yanran was just a young girl who was bound by the clan and social values. Hence, he chose to forgive her. After that, Xiao Yan and Nalan Yanran became friends. Nalan Yanran had always supported Xiao Yan's growth. At the end of the novel, Xiao Yan became a peak expert on the Dou Qi continent while Nalan Yanran became an outstanding medicine master. Both of them walked on their own paths. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!