After truth and lies(jagged is not luka's father) luka went on a world tour with jagged due to his talent and kagami went back to Japan. Audrey sent chloe to a boarding school in NYC.
In Gang of secrets marinette never told alya her secret of being ladybug... But due to marinette keeping secrets the girls slowly started drifting apart and when lila comes back (saying how she went to visit the queen of England and how she arranged her personal doctor for her lying disease and is completely healed) she used this to her advantage and turned everyone against her.
During this adrien remained quite and marinette got over her crush.She also started training as the Guardian and went to the guardians temple which was restored after feast using the horse miraculous.
During this time her parents also started drifting apart and started putting her in curfew due to her classmates constant complaining on her behavior. Also because She was never where She was supposed to be. She started becoming cold and having a emotionless face as marinette
Marinette also started doing commissions for jagged and luka and got famous but her name was Anonymous as she didn't want a lot of attention and getting in risk of a papparazi founding about her identity.
After a year and a half she graduated and on the same day she and chat noir defeated hawkmoth.
After one week her parents disowned her. She was very sad due to that and didn't notice the assassins who later kidnapped her
It was her birthday when she was bethrothed to Damien but he didn't know of her birthday.
After 1 week jon came with adrien as his boyfriend. There was a lot of tension between him and mari. The family also discovered about her birthday.
Adrien later revealed to mari how he met jon at a gala and they instantly become friends. After jon visited Paris for a few days and they discovered they had feelings for one another and decided to keep it a secret due to adrien's father and also becuz jon wasn't ready for telling everyone about him being gay. How lila found and took a picture of them kissing and blackmailed him. How he wanted to help her. He was about to tell her everything on the day of graduation but how he founded out his father was hawkmoth. Later marinette and him became best friends. Daminette sailed when damien found out what she went through and understood the reasoning behind her behavior.Luka later came to gotham for a concert, kagami for a fencing competition and chloe to apply to a college there for business. Chloe apologized to marinette for her behavior and talked to her about her mother and her jealousy etc. They became friends. Kagami forgive adrien. They all became good friends
Later lila was exposed. And her sheep and Marinette's parent regretted for not believing marinette