Based on the novels written by Beth Reekles, the plot centers around Rochelle "Elle" Evans, and the complications that arise when she begins dating her best friend's older brother.

Together with her life-long best friend Lee, the pair plan a kissing booth event as a fundraiser for their school at a Spring Carnival fair.

Noah meanwhile asks Elle to once again break one of her best friend rules with Lee, and wants her to move to attend college with him once she graduates high school.

[12] After graduation, Elle struggles to choose between Berkeley and Harvard, while spending the summer at her childhood beach house with Noah, Lee, and Rachel.

Following a fight with her father about his new girlfriend and breaking up with Noah due to concerns about her future, Elle ultimately realizes she needs to prioritize her own happiness.

Six years later, Elle is developing her own game, and after a chance reunion with Noah, they share a nostalgic motorcycle ride along the California coastline, hinting at a possible rekindled relationship and unresolved feelings.