Harvey has a skeptical and rational approach to life, shaped by his upbringing in a medically oriented family that valued scientific facts. Despite his passion for art, particularly painting, his insecurities and parental expectations relegated this passion to a mere hobby, practiced infrequently. His insomnia and perfectionism are central aspects of his life, leading to frustration and isolation when irritated. He prefers to avoid overthinking by using headphones to distract himself.

Though reserved and serious, Harvey has a surprising intuition that allows him to understand others deeply. A difficult upbringing with an emotionally unstable mother and an alcoholic, distant father left an emotional void he seeks to fill. His pursuit of a medical career is driven by a desire to make his father proud, though his true longing is for an emotional connection that provides the comfort he never had in his childhood.

Harvey is loyal and kind to close friends like Aster and finds comfort in painting and music. Despite his tendency to be reserved and his difficulty in opening up, he is deeply loyal and affectionate to those within his small circle of trust. His life is characterized by a constant internal conflict between meeting familial expectations and finding an authentic emotional purpose.