Hi, I would just like to say that you're a great writer and I really like "Case Closed". I would just like to give you some advice--whether you use it or not is your choice. I noticed that the book a bit of improper punctuation. You tend to write things like, "I don't know why,but I just couldn't stop thinking about him.maybe he likes me too." Whereas it should be, "I don't know why, but I just couldn't stop thinking about him. Maybe he likes me too."
It's just a bit of constructive criticism to help you along. Obviously your stories are doing phenomenally well, so take this advice as you may. This is in no way intended to offend you or your work. Thank you for your time, love. :)