Code Blue Season 2 Episode 5

This episode was about the death of Saejima's boyfriend who was once a doctor too and her tutor, but suffered from an illness that wasn't curable. He refrained from treatments that would extend his life, so he left his body to die out of its own will. However, when it happened, Saejima was on flight with the heli. Aizawa was dealing with a 7 year old child out of the orphanage. Due to his own history he was able to understand her and gain her trust.