Iori Igarashi is a medical radiographer, who is also known as a "hero behind the scenes," uses unconventional methods and breaks the mold of academia to find the cause of illnesses and diagnose "invisible diseases" with X-rays and CT. And joining Iori once again, is An Amakasu, the daughter of the former director of ‘Amakasu General Hospital’ who secretly has feelings for Iori.
