Guys, I’ve got an issue that I need help with.
I’m a novice ST, I’ve only run a few campaigns and I generally approach the job as making sure that the players have fun. I’m typically pretty lax in terms of what I allow, but I think I fucked up with this one player.

He’s the main character special snowflake guy. He wanted to play a Kiasyd in v5 and homebrewed some rules (which in fairness were pretty balanced so I allowed it) but this guy is now treating the whole campaign as his personal story and all the other players as bit parts.

I know there’s ways to control him because he’s not like this in other games but I’m trying to get this campaign over the line without pissing everyone else off.