I Can See My Lifespan, but I'm Being Targeted by Something Ominous.

The weird immortal, the crazy Buddha, the human emperor who was buried in immortality... That night, I was infected with the ominousness in the darkness. I could see the lifespan of mortals, and the immortals could drive away evil spirits... However, I was surprised to find that mine could not only see life span, but could also refine life span to create immortality! Just when I was slowly refining my lifespan and achieving immortality, I was horrified to discover... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.