Fi's noted for his sense of humor hes funny sarcastic smart a medic he loves making jokes out of everything he loves music he wants to live a normal life sometimes Niner tells him to shut it but find him funny he'd make fun of you and tease you a lot he's loud cheery very unserious about everything but he has two sides and one of them was that. other one not so happy and funny or cracking jokes it is serious and full of self doubt fear of getting left behind not being able to be good enough 