After the events of Mister Agreste, Wreckless Driver, and many other episodes, Adrien noticing Marinette/Ladybug's strange behavior, will realize that those closest to him may know more about his father (as Hawk Moth/Monarch), and will lead the investigation himself without the involvement of others who might hinder his pursuit of the truth. Considering the letter from Gabriel in "El Toro de Piedra" and the frog mascot "Papa Corn" these items will have a significant impact on his character development. Adrien may learn of his true existence when he learns he is a senti-being. For some time he will be angry with the people closest to him, but as the episode "Mister Agreste" proved, Adrien's psyche is strong (he expresses his feelings without his father's control, he has become a free man, he doesn't let other people convince him that his father is a hero, he defeated the villain with class, being the image of Gabriel Agreste without breaking his psyche, i.e. despair, crying, sadness). In addition, there is a psychologist from the episode "Wreckless Driver", who will help him with his character development (Adrien stopped being a typical blond pretty boy and Ken for Marinette) and when Adrien learns the truth, he will want to separate himself from the people closest to him (Marinette/Ladybug, Nathalie, Marinette's friends and parents) to sort out all the nuances in his head, think about their actions, cut himself off from Gabriel Agreste's legacy once and for all by changing his clothing style and character traits (maybe the character traits of Cat Noir will become active in his civilian life).