Lin Yun, 36 years old, his wife died early, he is a middle-level manager in a private enterprise and a single father. Recently, he feels that he is experiencing a mid-life crisis.He encountered setbacks in his career, was in a cold war with his 14-year-old daughter at home, and suffered from periarthritis of the shoulder, making him miserable every day.Just during these few days, he also discovered a secret – his daughter was a magical girl.A hero who, at a young age, fights extraordinary monsters and protects the city from attacks. This is how ordinary people perceive magical girls.But he knew very well that becoming a magical girl was life-threatening.Should I stop her? Or should I respect my daughter’s choice and protect her in other ways?Looking at the flower of her heart that had already been covered in dust in the closet, Lin Yun, a former magical girl who had retired for 19 years, faced the third major decision in her life.