Amagumo no Kirema ni Mieru Kuni.

Lisa is a young girl suffering from a rare disease that only affects beautiful females, and she is destined to die. Refusing to spend her final days in a hospital, she runs away and is discovered by Grant, a man who is about to leave his town after being mistreated by its residents.

Grant takes Lisa in, and the two form a fragile bond as they navigate their respective fates. But their connection is tested by the harsh realities of their circumstances, forcing them to confront what it means to find happiness in the face of inevitable loss.