Series Introduction:
"The blue sky is dead, the yellow sky shall rise, in the year of Jiazi, all under heaven will be greatly auspicious."
Guan Yu and Zhang Fei are high school students, but because they love to act as righteous knights-errant too much, they've been expelled from twenty-four schools, known as "The Twenty-Four Schools!" Just when the two were feeling desperate after being expelled again, suddenly a man with very large earlobes appeared. This person introduced himself as Liu Bei, style name Xuande, from a fallen noble family who couldn't afford the tuition fees, so he often changed schools. Liu Bei proposed a plan: since he has noble bloodlines, he can attend the best noble school in the country - [Donghan Academy], but he can't afford the extremely expensive tuition fees, and only members of the royal family or nobility can enroll. Zhang Fei, being wealthy, said he could help pay everyone's tuition. Liu Bei then said that as long as the money issue was resolved, everything else could be settled. He suggested that the three of them swear brotherhood, making them all members of the royal family! Then they could all enroll! So the three went to a beautiful and meaningful place to swear their oath. But just as they finished saying the last sentence: "We do not seek to be born on the same day, month, and year, but we wish to die on the same day, month, and year," four people - Xiu, Wang Daxiong, Ding Xiaoyu, and Wang Yasser - traveled through a time portal from the Iron Space-Time to the Silver Space-Time. Because Daxiong accidentally dropped a coin which knocked over an empty can, the can knocked over a stone, causing a chain reaction... The rock caused by Daxiong ended up hitting Liu Bei to death! Guan Yu, being loyal to his promises, wanted to follow his elder brother and die on the same day, month, and year. Zhang Fei tried to stop him but failed, so he had to knock Guan Yu unconscious first. At this point, it was discovered that Liu Bei wasn't dead, just severely injured and unconscious. After discussing with Daxiong, Xiaoyu, and Yasser, they decided to leave Xiu, who looks strikingly similar to Liu Bei, in the Silver Space-Time as a substitute, while Xiu reluctantly agreed to maintain the space-time order. Meanwhile, the other three took the seriously injured Liu Bei back to the Iron Space-Time for treatment. When Guan Yu woke up, he found out that Xiu pretending to be Liu Bei was still alive and was very happy. Zhang Fei was also glad that they didn't have to die together. Thus, the three finally arrived at [Donghan Academy]. Guan Yu and Zhang Fei both believed that they could make a name for themselves here.
The three hoped they could study well and graduate from Donghan Academy, but because Donghan Academy, being big, invites trouble, it attracted attacks from Gold High School and Hedong High School (where Dong Zhuo is the principal), putting Donghan Academy in constant peril. Moreover, Master Zu Ci even set up the "Eight Gates Golden Lock Formation" at the school gate to prevent students from attending classes. Naturally, the three felt it was their duty to break the formation. However, breaking the Eight Gates Golden Lock Formation wasn't easy. Even Liu Bei Xiu and Xiao Qiao were trapped inside, facing life-threatening danger. Therefore, Guan Yu and Zhang Fei accepted the suggestion of Student Union President Cao Cao and sought help from Ma Chao, a cheerful young man who is extremely resilient, and Ma Chao's good friend Huang Zhong, an infallible marksman, to break the formation. They also roped in Zhao Yun, a super handsome youth who always had conflicts with them, to join in breaking the formation and rescuing Liu Bei Xiu and Xiao Qiao. During the process of breaking the formation, Guan Yu saved Zhao Yun's life by shielding him with his arm during a critical moment, resolving the grudges between Zhao Yun and Guan and Zhang. From then on, Zhao Yun called the other four brothers and vowed loyalty, working together to break the Eight Gates Golden Lock Formation.
After breaking the formation and making new brothers, everyone thought they could smoothly finish high school. However, on one side, Gold High School was eyeing Donghan Academy's resources greedily, and on the other side, Principal Dong Zhuo of Hedong High School had ambitious designs on the position of Donghan Academy's principal, who is the master of the "Same School Alliance" and the Young Emperor. This meant that the Five Tigers and Liu Bei Xiu were destined not to live peaceful campus lives. A battle for supremacy was about to begin...