For a 15 year old Baji was very expressive and impulsive, which seems likely for his age, he's a teen after all, though his mood changes are more frequent than it'd usually be with 'normal teenagers'. He's very impatient and wants things done his way, and ASAP, otherwise he'll be annoyed and not want it anymore. Constantly sarcastic and kinda acts like a brute. But there are times where he is clingy or just nice in general.