Belly measures her life in summers. Everything good, everything magical happens between the months of June and August. Winters are simply a time to count the weeks until the next summer, a place away from the beach house, away from Susannah, and most importantly, away from Jeremiah and Conrad. They are the boys that Belly has known since her very first summer—they have been her brother figures, her crushes, and everything in between. But one summer, one wonderful and terrible summer, the more everything changes, the more it all ends up just the way it should have been all along.

Sixteen-year-old Lara Jean Song keeps her love letters in a hatbox her mother gave her. They aren’t love letters that anyone else wrote for her; these are ones she’s written. One for every boy she’s ever loved - five in all. When she writes, she pours out her heart and soul and says all the things she would never say in real life, because her letters are for her eyes only. Until the day her secret letters are mailed, and suddenly, Lara Jean’s love life goes from imaginary to out of control.

Jackie does not like surprises. Chaos is the enemy! The best way to get her successful, busy parents to notice her is to be perfect. The perfect look, the perfect grades—the perfect daughter. And then Jackie's family dies in a freak car accident and she has to move cross-country to live with the Walters—her new guardians. Now Jackie must trade in her Type A personality and New York City apartment for a Colorado ranch and all the wild Walter boys who come with it. How can she fit in and move on when she needs to keep her parents' memory alive by living up to the promise of perfect?

In the Land of the Rising Sun, where high culture meets high kitsch, and fashion and technology are at the forefront of the First World's future, the foreign-born teen elite attend ICS - the International Collegiate School of Tokyo. Enter foster-kid-out-of-water Elle Zoellner, who, on her 16th birthday discovers that her long-lost father, Kenji Takahara, is actually a Japanese hotel mogul and wants her to come live with him. Elle jets off first class from Washington, DC, to Tokyo, which seems like a dream come true.

Morgan is determined to prevent her daughter from making the same mistakes she did. By getting pregnant and married way too young, Morgan put her own dreams on hold. Clara doesn’t want to follow in her mother’s footsteps. Her predictable mother doesn’t have a spontaneous bone in her body.