I went abroad to do volunteer medical work when I got caught up in a civil war. I was shot by a rebel while shielding a patient. But when I finally woke up, I had turned into a child?!?
Before me lay a destroyed carriage and a group of strangely dressed people, unconscious!
"It's like a Murim world."
As I hurried to administer first aid to save at least one person, I realized that this world is from the [Supreme Demon King], a Murim novel I loved to read.
After meeting the rescue team of the 'Three Great Doctors', I discovered that one of the people I saved was the main character of this novel, the future Demon King 'Yeoharyun'!
"Hey, since I owe you for saving me, call me 'hyung'."
To save his life, I became blood brothers with the future Demon King, and Baekrineuison, one of the most knowledgeable people around, recognized my potential and took me as his disciple. This is the story of how I became the greatest doctor in Gangho!