In his seventies, Grandpa Lao Fei practiced martial arts in Hong Kong when he was young and became invincible. Now that he is old and useless, his life is also poor and difficult, and even his home has been raided by the property management. Faced with a bleak life, old and uselessWith a vow to strive again, and everyone mocking him, a useless old man and a useless martial arts skill collided with unprecedented sparks in the new environment, and he also achieved great success lateTo achieve great success... However, life has also become complex. Faced with the impact of family, career, and emotions, how should he make a choice?