my monster girlfriends

I want to write a book.
A warm, quiet book.
Given the title, the book needs some girls.
Some cute, lovable, delicate girls.
If I want to keep the story sweet, I need some ups and downs, some... heart-warming sugar.
But I don't like to be too serious... So, I added some joy to the book, and added some lighthearted and funny seasonings.
But it’s not good to be too happy. The real story should have some sourness and astringency to set off the sweetness and deepen the taste.
Finally, I smeared some cream on the story, a colorful, alluring cream, for garnish.
In the end, it was such a piece of cake - I think it tasted pretty good.
……
This is a warm fairy tale, with some love, some romance, and some sweetness.
——In view of the word "we" in the title, I can only change "there is a pretty girl" to "some pretty girls"...