Growing up as an orphan, ML, Jeong He-Jin didn't open his heart to anyone, and after giving his all to become a cardiothoracic surgeon, he died. When he woke up he realized he was in the body of his Choi GiSeok, the patient that received his heart. After he contemplated what to do, he decided to follow his original dream and become the Greatest Cardiothoracic Surgeon.
One day Rosalin, an artificial cell that knows everything about biology, appeared as a status window in front of ML, Ryu Young-jun, a researcher who works for a pharmaceutical company.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Level-Up Doctor (Manhwa)