Cai Jingran breaks into an echo corridor that "rewrites destiny" and finds that every time he escapes, he returns to the starting point; and Fang Shixi's silent disguise is like a key and a trap. The two rescued each other, tested each other, and healed each other in reincarnation. After constantly paying the price, they finally discovered the truth of the cycle - it turns out that fate is not a curse, but a door for protection.
