The TV series directed by Huang Lei takes place in Tianyi Pavilion, the first library in China in the last century. What is this?

The story takes place in Tianyi Pavilion in Ningbo, the first library in China in the last century. At the end of the Qing Dynasty and the beginning of the Republic of China, the situation was turbulent, but Fan Zhen, the owner of the Fan family, always clung to the books left by his ancestors. Uncle Han is his adopted child, and his memory is amazing since he was a child. He fell in love with Lin Ruoyun, the daughter of his father's old friend Lin. They met and eloped, but their families found out. If Yun drowned, Uncle Han wandered around the Jianghu and met Minnie, a half-blood girl who looks like Ruoyun.