Marinette is excited because today is her birthday. Not only that, but her grandmother, Gina Dupain, is also visiting. Despite being excited to visit Marinette, Gina is surprised to see how much Marinette has grown up, but is saddened when Marinette does mostly new things. While hanging out, Marinette heads to where her friends planned her surprise party and ditches Gina. Thinking she was rejected, Gina is akumatized by Hawk Moth, turning her into "Befana", a motorcycle baddie with the ability to turn people who do bad things into coal and those who do good into angels, who become her servants, with a gun filled with candy she wanted to give Marinette.