Summer vacation is coming to an end, and Sakura and Tomoyo haven't finished their homework yet.They meet up to go to the library to read a book and write a book report.Sakura wanted to find the thinnest book in the library, but four of the five books in the library had been borrowed, leaving only one in the library.This one was still flying around, causing Sakura, Tomoyo and Wang Xiaoming to chase it with sweat all over their heads.In the end, it was Sakura who conquered the Ekuro card hidden in this book.