Lin Weiyue is a 22-year-old painter who "lives in seclusion" in Qingwu Mountain. Her daily wish is to "paint all over the mountains and rivers to earn some money, and refuse to get married and live in peace until she grows old." Her biggest worry is Aunt Wang's "fancy ways to get married" and "cannot finish the drawings." She thought she could live a stable life hiding in the mountains, but she didn't know that the "Picture of Fishing Alone in the Cold River" she drew at random contained clues to the secret treasure of the previous dynasty, and she was the daughter of the historian of the previous dynasty who was exterminated. Shen Jinghan, on the surface, is the Prince of Jing'an who "lives idlely", but in fact he holds a secret guard organization, secretly investigating the murder case of the previous dynasty and the mystery of the secret treasure. By chance, he got Lin Weiyue's painting, was attracted by the mystery in the painting, and followed the clues to find Qingwu Mountain. When the "confused" female painter met the "black-bellied wife protector" prince, Lin Weiyue's eyes trembled: "Sir, your secret guard has almost dug a hole in my roof. Do you want to steal the painting or arrest me?" Shen Jinghan looked calm on the surface and was ecstatic inside: "I just want to ask the girl to paint a portrait, and the reward will be doubled." There is a mystery hidden in the painting, the identity is doubtful, and a battle around the secret treasure and life experience quietly begins. When Lin Weiyue's life experience was exposed and murderous intent abounded, Shen Jinghan shed his disguise: "Whoever dares to touch my people must go through my secret guard first!" Lin Weiyue held the paintbrush in her eyes with light: "Don't worry, Prince, I can also hold a sword to protect myself." The two joined hands to break the situation, guarding each other in the whirlpool of suspense, and finally revealed the truth and realized "painting all over the place"
