"If I'm being honest, I've loved you from the beginning."

Seventeen-year-old Emma Nakamura-Thatcher doesn't believe in forever love, not after her parents' heartbreaking divorce. Which is why, when she attends the summer festival of Tanabata with her grandfather, she wishes for proof that love is real--and that it can last.

Emma doesn't expect anything to come of her wish until she discovers a note from someone claiming to be her true love...contacting her from the future. Someone has to be pranking her, right? But as more notes pour in, Emma is forced to admit the mysterious writer knows her in a profound way, which can only mean one thing: This is real. Someone she knows now is actually contacting her from the future.

But who?

Is it Ezra, the absurdly popular musical genius? Theo, the literal boy next door, who knows Emma best? Or Colin, the overly confident, overly handsome, overly rich kid she meets when she starts cleaning his mega-mansion?

As Emma tries to uncover the identity of the letter writer, the mystery turns into something greater: a process of self-discovery. In the end, Emma will learn the key to making love last--and how it's the point of, well, everything.