What do you mean by headcanons??
Headcanons, especially in regards to a modern university au, would be to do with how you choose to interpret the character, what direction you’re taking with them, backstory, that kind of thing. We use it to help us gauge how you would fit in and what you would bring to the table.
A few examples would be that Enjolras is short, so he stands on a chair so he can get everyone’s attention. Or that Grantaire rescued a small kitten when he was a child. Or that Eponine is genderfluid. Stuff like that, it helps us build our universe.












