When one day Ladybug decides to do something nice for her friend and partner Chat Noir, he misinterprets it and tries to kiss her. Shocked, Ladybug flees the scene and chat seeks comfort in the arms of his good friend Marinette.
Already the second semester of University and Marinette STILL hasn't confessed to Adrien. When her mouth decides to slip up just in time for Valentine's Day, things go a lot better than her luck could have ever imagined.