Su Bienian should have been connected to "medicine," but one day he watched a sunset on a whim and went blind.
Having lost all hope, he waited for release in a fire, only to be rescued by a passing System.
[This System heard you were someone connected to healing, so I came to save you. In return, you have to help me meet a few rescue KPIs. Don't worry, I'm just taking advantage of a favor owed.]
In one perilous mission after another, he healed patient after patient, left each instance alongside them, then killed himself as quickly as possible once the mission was over.
Until the apartment where he lived grew ever more crowded, and he finally asked the System what was going on.
System, maybe we should just run away?
[Sure.]