There have been a lot of posts recently discussing "Knock Knock, I Love You". It is the second work adapted from Xi Juan's novels. There is no need to introduce Xi Juan, I believe girls from the post-80s generation have all read her books.
Personally, I really like her works such as "The Long Braid Elf's Affairs", "The Stolen Bride", and "The Poppy's Lover". Sometimes, I would imagine which celebrities could play the male and female protagonists in these stories.