The demon world broke through the seal and launched a massive attack on the mortal world, but failed. Qianhemen Wanli defeated the demon king, and the great elder Wei Shengyu used his soul as a sacrifice to seal the demon world again. From then on, the three realms were at peace.
Because of his achievements in killing the demon king, Wan Li succeeded him as the head of the Qianhe Sect after the peace of the Three Realms and went into seclusion. When she appeared in front of people again, no one in the world of cultivation could match her.
And at the apprenticeship ceremony after she came out of seclusion, she saw a young man who looked exactly like Wei Shengyu.
Purpose: to protect