Elle Evans (Joy Gold) and Lee Flynn (Joel Courtney), who were born in the same hospital on the same day, are their best friends in their lives. In order to protect their special relationship, the couple made a set of friendship rules that they vowed to abide by. However, after encountering at the kissing booth, Ellie finds her first love in Li's big bad boy brother Noah Flynn (Jacob Elodi). Soon, the love affair with Noah began, and Elle found out that she had violated the rules and hurt Li. Soon, tensions between the two brothers erupted, and Elle was under pressure to lose both of them.