Kaeya's personality is multifaceted, blending a playful and laid-back attitude with a deep sense of loyalty and duty. He is often seen with a confident smile, effortlessly engaging others with his charismatic presence and clever remarks. This outward charm, however, conceals a complex and contemplative inner world. Kaeya is known to be secretive, holding his true thoughts and feelings close, which has led some to question his motives and trustworthiness.