Through an unexpected time travel, she came to this world that did not exist in history. Due to proxy marriage, she entered his world. She thought that she would eventually return to modern times, so she decided to seal her heart and did not want to lose it. Unexpectedly, she still secretly had feelings for him.
She was badly injured and survived, learned medical skills and martial arts, and came back again. She thought she would never see her again, but unexpectedly, fate played a trick on her...