Signed in the Forbidden Area for Ten Years and Returned to University to Become a Doctor

His parents were killed, and he came to a forbidden place like a bereaved dog. Unexpectedly, as soon as he arrived at the forbidden place, he was imprisoned by the system and signed in for ten years. He was also accepted as an apprentice by the five fairy sisters who guarded the forbidden place. From then on, he lived in the forbidden place without shame or impatience for ten years. At the end of the ten years, he acquired medical skills and returned to the world of medicine!