Lila dupes Adrien into spending time with her on the pretext of helping her with homework. When they head to the Agreste mansion, Nathalie confronts them, and Lila claims that she is helping Adrien with homework. After they are done, Lila takes a picture of herself kissing Adrien on the cheek and sends it to all of Adrien's classmates. As she is leaving, Gabriel catches her and berates Nathalie and the Gorilla for allowing her access to Adrien. When Kagami receives the picture, she flies into a jealous rage, allowing Hawk Moth to akumatize her into "Oni-Chan", a villain who follows Lila with a horn on her forehead relentlessly by swapping locations with those who receive her picture message of a horn on their cell phones. During the battle, Lila quietly attempts to offer Oni-Chan help in defeating Ladybug and Cat Noir, impressing Hawk Moth. After defeating Oni-Chan, Adrien warns Lila that he will not tolerate her hurting his loved ones. Gabriel invites Lila to the mansion, and the two strike up a friendship.