Nan Jianzhu felt that he was very unlucky. First he lost his memory and then traveled through time.
She didn't stop even after traveling through time. Relying on the fact that she was a smart (mentally retarded) girl in the 21st century, she started a crazy death-seeking mode.
Even the villain boss doesn't want others to know that Nan Yuanzhu knows her.
Concept: The ending is very realistic