This is a story about friendship; this is a story about family affection; this is a story about finding oneself; this is a story about justice defeating evil; to put it bluntly, this is actually a story that can make the audience's blood boil. Xian Chi, an orphan, was adopted by the proprietress of the dumpling restaurant in Taoyuan Town since he was a child. He lived with the proprietress, whom he called "hot mom", and her niece Mo Yi. But one night when he was five years old, his sister Mo Yi was captured by the bad guys. From then on, Xian Chi was determined to find the monster and save his sister. In a blink of an eye, ten years have passed. Seeing that the little boy has grown into a brave and passionate teenager, "hot mom" finally "allowed" him to leave Taoyuan Town and embark on the journey to find his sister. On the way to find his sister, Xian Chi encountered a monster called "zero" by the world. Seeing that he was no match for the monster, a teenager named Qianjun arrived in time to save Xian Chi. After a hard fight, the two teenagers finally worked together to eliminate "zero". It was precisely because of this incident that Qianjun discovered that there was a strange power hidden in Xianchi's body, and this power was similar to "Zero". Qianjun then brought Xianchi to Jiugongling, the residence of the legendary "Xia Lan" who once saved the world. In Jiugongling, the "Xia Lan" were surprised to find that there were two powers in Xianchi's body at the same time. Although he had the power of Xia Lan - Yuanqi, and there was a "Xia Lan" mark on his hand - in this world, if a person has this mark, then he (she) is qualified to become a "Xia Lan". But on the other hand, there is another "Zero" force in Xianchi's body. "Zero" force is a very evil force. A long time ago, there was a monster with super zero force - "Qiong Qi". He once brought a short darkness to the world. Later, after a war, "Qiong Qi" was sealed by several ancient "Xia Lan" in the "Wuji Abyss" - a legendary bottomless tiankeng. Although the Qiongqi was sealed, there are still countless Zeros in the world ready to fight back. Although the Zero force was found in Xianchi's body, the leader of Xialan, Pozhen, still decided to let Xianchi accept the training of Xialan, so that the Yuanqi in Xianchi's body could slowly suppress the Zero force until the Zero force was completely eliminated. In this way, Xianchi began to accept the special training of Xialan in Jiugongling, which was unimaginable for ordinary people. In Jiugongling, Xianchi met partners such as Qianjun, who was steady, and Chenyue, who was smart. They relied on their strong beliefs to go through difficult tests and finally became the primary Xialan, the Four Elephants Xialan, and passed the selection to enter the Chitian Palace, and worshipped under the Taiji Xialan Yihenxi, and began to formally study. Although they train together every day, Qianjun's family died in the battle with "Zero", so Qianjun always has a grudge against Xianchi, who has half of the power of "Zero". However, the stubborn Xianchi has been unaware of Qianjun's strange look at him and treats him sincerely. Gradually, through his unremitting efforts, Xianchi proves that although there is the power of "Zero" in his body, his heart has not been polluted at all. Xianchi's hard work moved and influenced everyone around him, so that everyone, including Qianjun, slowly changed their inherent views of Xianchi. And through fighting side by side again and again, Qianjun and Xianchi gradually developed a sincere friendship. After hard training that ordinary people can hardly imagine, Xianchi and others have been able to follow the high-level "Xia Lan" to perform tasks, and one of the tasks of "Xia Lan" is to find and save those humans possessed by "Zero", use the power of "Xia Lan" to force "Zero" out of the body, and then destroy it, so that humans will no longer become "puppets". In the "God-falling Trial" held in Jiugongling, the young "Xia Lan" such as Xian Chi, Qian Jun, Chen Yue, etc., relied on their own strength, superior intelligence and strong cohesion to continuously improve themselves. Unexpectedly, when the "God-falling Trial" was halfway through, a shocking conspiracy led Jiugongling to a catastrophe. A former traitor of Jiugongling actually introduced "Zero" to Jiugongling, trying to snatch Jiugongling's treasure - "Xia Lan God-falling". As long as nine God-fallings are collected, it is possible to release the "Qiong Qi" sealed in the "Wuji Abyss". Under the leadership of the commander of the broken formation, the young "Xia Lan" such as Xian Chi finally defended Jiugongling after a series of hard battles. But after this war, Xianchi also learned a shocking secret about his life experience - Xianchi was actually the original body of "Zero" many years ago, and after injecting "Yuanqi", he created the secret weapon of "Zero", and this so-called "weapon" was created to destroy "Xia Lan". Xianchi, who learned about his life experience, and Qianjun, Chenyue and other young "Xia Lan", with their own doubts and dreams, were forced to embark on a growth path full of difficulties and obstacles in advance...