Made of Memories

After saving Adrien from a betrothed marriage, Ladybug fights an incredibly hard akuma of Bridezilla herself. After taking a devastating blow to the head, Chat Noir carries her to shelter and protects her. While Ladybug is out, Chat has to defend her by himself, making it him vs. His bride-to-be.

While Chat is clawing desperately to keep Paris safe, Marinette has been transported back to high school memories. She must relive all her dumb decisions and her hormonal teenage years. She is desperately trying to wake up and help Paris.

While Chat is struggling to keep himself alive, Marinette is living through her entire life up to this point, realizing what she should've done instead.