One hundred thousand years ago, the great emperor of the human race, Lu Xuan, guarded Tianyuan in exchange for a hundred thousand years of peace for the human race. The condition was that the four immortal families and the three immortal Taoist orders would protect the Lu family's peace. One hundred thousand years later, the Lu family was forced by the Lin family and faced annihilation. The head of the Lu family, Lu Tianyuan, appealed for help to no avail. Everyone in the Lu family used their essence and blood to help Lu Xuan, who was summoned by his bloodline, regain his strength.
Just like two idiots.