Adrien had always been very sure of his feelings for Ladybug, but a lack of akuma attacks coupled with a patrol hiatus has him seeing less of the spotted heroine and more of his sweet and clumsy classmate Marinette. Meanwhile Adrien and Chloe are set to sing a duet at the up coming Charity Auction, but when Chloe gets sick, Marinette is roped in by Alya to replace her at rehersals.