The Qin family's long-lost true heiress, Zhou Yi, makes a strong comeback. She appears ordinary, but actually harbors multiple and diverse identities. Relying on her superior wisdom and strength, she calmly deals with life, amazing everyone with her growth time and time again. She joins forces strongly with Cheng Jin, a mysterious commander disguised as a librarian, to jointly write a fierce counter-attack legend, personally creating a wonderful legend for herself.