[@Fjanz]

what does that who sentence in quotations mean? Regardless, You never put any sort of limitation on your power. You can manipulate all the light in a room into another room forever. They can also absorb all the light making it impossible to see and even if the other person comes prepared with a flashlight or fire, you can just absorb it, and because you can absorb ALL LIGHT there is nothing to allow them to see, he can also do that forever. The biggest thing is that you can BECOME LIGHT making you virtually impossible to hit ever and never in any danger. Your flaw is not about his quirk, Charismatic is not a skill but rather a characteristic. You did not give him a favorite hero, a biography and his reason to want to go to the academy is not nearly important, considering he has to enroll, go through an intense and rigorous entrance exam, struggle through intense training and studying all just to get strong, considering the school is set up to help people become official heroes. This is the best academy in the world for heroes, why would he do this instead of work on himself. You have to go to these school to be a hero, not to be strong.

Furthermore, earlier you said he could train to get the ability to manipulate matter.

I really suggest altering his power. People in this don't often have element powers. I really suggest trying with a new power.