Uncle Not Serious, Spy Dad Returns

After returning to the country, former field agent Yi Leng learns that his wife has passed away and his daughter, Yi Nuannuan, is living with others and being bullied. Unable to reveal his identity openly, he adopts the alias 'Huang Pihu' and hides at the Yu Mei Restaurant, secretly protecting his daughter while working as a street food chef. He also helps the restaurant owner, Wu Yumei, revive her business. During this time, he meets Ou Li, who transplanted his late wife's heart. He silently fights evil and upholds righteousness, ensuring a safe and stable life for his daughter and those around him.