Twenty-eight-year-old girl Yu Xihui had a successful career, but when she woke up, she found that she was sixteen years old again. When Yu Xihui was in high school, she had a crush on Lin Mu, a boy in her class. She was too cowardly to get close to her because of her low self-esteem. Now back to when they were young, Yu Xihui and Lin Mu became roommates and finally got together after a long wait.
Concept: A man who missed love due to cowardice returned to the age of sixteen and bravely stayed with the boy he liked.