Internally, Cat Noir would be tormented by guilt. His sense of right and wrong would be constantly at war within him. Helping Hawkmoth goes against everything he stands for as a hero. This internal conflict could have long - term effects on his mental and emotional well - being, and might even change his personality over time as he struggles with the choices he has made.
He might also lose his relationship with Ladybug. Since she is all about fighting against Hawkmoth, if Cat Noir sides with the enemy, Ladybug would be deeply disappointed and their partnership would be severely damaged. This could lead to a rift not only in their superhero work but also in their personal relationship which has been built on trust and a common goal of protecting Paris.
One consequence could be that he loses his standing as a hero in Paris. People who once looked up to him would see him as a traitor.
Well, in some fanfictions, Hawkmoth might use false promises. He could promise Cat Noir something like the power to save a loved one in exchange for his help.
Hawkmoth's character development in the 'hawkmoth gets help from a guied fanfiction' could vary. Initially, he's all about his evil plans. But with the guide's help, he could become more empathetic. For instance, the guide might show him the consequences of his actions on the people of Paris. This could make him hesitate in his villainous deeds. He may also start to adapt new skills or knowledge from the guide, which could change his modus operandi. This new influence could make him a more three - dimensional character, with a mix of his original villainous traits and some new elements introduced by the guide.
Perhaps Hawkmoth tells Chat Noir because he believes Chat Noir can understand his motives or is trying to manipulate him into giving up the miraculous.
It could be a character from a different dimension or realm. This character might have some sort of connection to the Miraculouses and sees potential in Hawkmoth. They decide to help him, thinking that they can redirect his actions towards a more positive outcome, or at least a less destructive one.
I'm not sure specifically as I haven't read this particular fanfiction. But the guide could be someone with special powers or knowledge. Maybe Hawkmoth gets help like strategic advice or some form of magical assistance to further his evil plans.
On a personal level for Adrien, he would be straying from his own moral compass. He has always been a character associated with good and helping others. By helping Hawkmoth, he would be going against his own values, which could lead to internal conflict and a possible downward spiral in his character development. He might start to question his own identity and the choices he has made, and it could take a lot of effort to get back on the right track.
Well, Hawkmoth might become more powerful. Maybe the villain guide teaches him new ways to manipulate people or use his powers more effectively.
He'd probably face a lot of hostility. People might avoid him or even try to attack him.
No. In the normal 'Miraculous' series, Cat Noir is a superhero, not a criminal. Fanfiction might deviate from the original, but the general perception of his character is heroic. So, just because it's a fanfiction doesn't mean he's a criminal.
In some fanfictions, Cat Noir's reaction is more complex. He is excited to know but also realizes the great responsibility that comes with this knowledge. He becomes extremely protective of Ladybug's identity. He might start to distance himself a bit in order to not accidentally give away her secret. At the same time, he has to deal with his own feelings for her which are now even more intense since he knows who she really is.