The book is called "Good Morning Princess" written by Blue Jeans and published in 2012. It is about 6 best friends who meet weekly at a cafe. The book follows each character and shows their evolution over time as they deal with teenage problems. The narrator enjoyed how the book depicted one character falling in love on the subway and their detention that led to friendship. It is recommended for teenagers as the problems depicted could be relatable. The book is part of a trilogy and was adapted into a successful film.