Can a single pool marry a book?

Of course. According to "Love between Light and Night" by official website, the birthday card pool in the main pool of single pool can be forced to marry ordinary books, and the mixed pool has a limited number of books, which will become ordinary books after the activity. You can choose to extract more books from the mixed pool, and then use the saved books to marry birthday cards and singles activity cards. "Love between Light and Night" is a female love mobile game created by Northern Lights Studio, which was officially tested on June 24th, 20021year.