Eri is initially portrayed as timid and withdrawn due to the trauma she has endured. Having suffered greatly because of her uncontrollable quirk, she exhibits fear and reluctance to interact with others. Despite her initial reservations, Eri possesses a gentle and compassionate nature, caring deeply for those who show her kindness. Over time, as she begins to heal and gain confidence, Eri demonstrates resilience and determination, striving to overcome her past and find her place in the world.