Miraculous: Tales of Ladybug & Cat Noir (2015)

S6E18 Heartfixer

Sinister villains are determined to tear Marinette and Adrien apart, putting their bond under constant threat. As dark forces scheme against them, the two heroes must fight to protect not only Paris but also the love they share. With danger lurking at every turn, their relationship is tested like never before, and they must find a way to hold on to each other despite the wicked plans set against them.