Jo In-sung
At the hospital, Jung-eun meets Eun-ho's stepbrother Eun-sup (Jo In-sung), who is also a doctor. Despite his best intentions, Eun-sup finds himself powerless to resist Jung-eun, and he falls for her as Eun-ho lies comatose. Later, Eun-ho does regain consciousness, but his state of mind is stuck in childhood. Little by little, he begins to regain his memory. One day as he intercepts a car, he starts to recall the past and understand that his unacknowledged pain and fear of cars resulted from his mother's death. Jung-eun, fed up with hiding the truth, tells him the shocking news that his mother died in a car accident.