I'm filing this one under New Adult mostly for what Sky and Holder are going through though since they are in high school you might put them under the Young Adult category. I do think that their maturity and what they are going through is enough to categorize this one under the NA genre.
Actually it's not a series in the regular sense of the word. The first book being the "main event" written from Sky's POV, the second being the first story told from Holder's POV with a little bit more than was told in the first one and the last novella was a free bonus from the author of Sky's best friend, Six, finding her HEA.
Sky has been home schooled all her life, but on her senior year of high school she convinces her step mother to allow her to go to school. High School isn't that bad, what is confusing is the cute guy she keeps running into - Holder. He seems to be 5 different people, his moods keeps changing and she can't keep up with it. What's his deal anyway? It's SO NOT what you think.
It's quite a difficult story with a lot of things for both Sky and Holder to find out, about themselves and about each other.
Note - "The Best First Kiss" is a free scene from the first book in Holder's POV. This scene is included in the second installment in the series told from Holder's POV.
1. Hopeless (published 19 December 2012) ★ ★ ★ ★ ★
1.5 The "Best First Kiss" (Free Scene) (published 26 December 2012) ★ ★ ★ ★ ★
2. Losing Hope (published 8 July 2013) ★ ★ ★ ★ ★
2.5 Finding Cinderella (published 14 October 2013) ★ ★ ★ ★ ★