Immortality? Did You Ask Me If I Wanted It?

[System + Points + Immortality + Decisive Killing] I died at the age of eighteen, but was resurrected by the [Immortality System]. From then on, I can get one immortality point every year! While others are still practicing hard, I have already used points to maximize my skills! [Medical skills] If you add some points, the king of hell grabs people from his hands, and I am respected as the "miraculous doctor"; [Martial arts] If you add some points, one sword can open the gate of heaven, and I am known as "the best in the world"; [Strategy] Add some points, the subjugated prince whom I assisted will finally unify the world and ascend to the throne! In the past three hundred years, I personally buried my adopted daughter and sent my apprentice to the throne with my own hands. But when the old emperor asked me for the secret of immortality with trembling fingers, I realized... The mortal world has no room for true immortals! My journey to immortality has just begun!