Lin Fan, a handyman of the Qingyun Sect, has had a bloody sword pattern looming on his chest since he was a child (the "sin blood" brand of the Xuanyan clan). He has been ridiculed for his "zero spiritual root". Only Su Qianqian, the senior sister of the handyman academy, has always secretly protected him. On the night when he fell off the cliff, he used a blood contract to awaken the Xuanyuan Sword embryo. The remnant soul (sword spirit) of the ancestor of the Xuanyan Clan that was attached to the sword jumped out and cursed: "Boy, you can't bear this little pain. It's a disgrace to our Xuanyan Clan!"
From then on, the waste material counterattacked: the outer sect Xiao Bi defeated the Tianjiao with three moves, broke into the spiritual library at night to obtain ancient books on refining medicine and weapons, and the sin blood clan mark on his chest grew brighter with the growth of the sword embryo - and this "sin blood" was actually the mark of the Eclipse clan who framed the Xuanyan clan (bloodline of the Human Emperor) thousands of years ago.
He carried the sword embryo into the foggy forest and broke through the sect's secret situation. Su Qianqian's gentle protection, Mo Qingli's mysterious temptation, and Yun Shuyao's tit-for-tat confrontation formed the bond of the young man's growth; refining medicine to save the fallen genius, refining weapons to help the monster beast king, the "Sword Alliance" changed from an exiled team to the leader of all races.
When the last pieces of the sword were gathered together, the sword spirit regained all its memories: Lin Fan was not only an orphan of the Xuanyan clan, but also the "container" of the Human Emperor's bloodline. On the day when Emperor Eclipse broke through the world, he tore the brand of sin blood, used himself as a sword, brought the sword to all races, and opened the gate of heaven with one sword - this time, sin blood is a medal, and Xuan Yan is faith.
