Ernesto Arellano is quiet, intelligent, and somewhat reserved, with a gentle sense of humor. He's Mexican American wears glasses, hes a good student who tends to think before he acts, but he isn’t afraid to step up when someone he cares about needs him. He’s loyal, curious, and has a hard time trusting people beneath his calm personality, Ernesto carries grief and anger over losing his brother Robin, which makes him more emotionally complex than he first appears. He can be awkward and shy at times, but he’s warm once he trusts someone.