Caretaker of the Protagonist and the Antagonist.

Niu is a reader who was furious about the ending to a novel someone wrote. The protagonist who had suffered..died with the villian! The so called villain...was a misunderstood soul who was constantly blamed! This caused the villain to hate the protagonist, causing the protagonist to misunderstand and hate him. Niu thought he could see a happy ending where they enjoy themselves happily, but no! They didn't even reveal their secrets when they were on death's door! A goddess who was reading the same book, made Niu reincarnate into a side character who was a renowned doctor and cultivator. Niu decides to put the protagonist and antagonist on the right path. ... 15 years later. "I love you master!" -Protagonist. "I don't care what they say! Be mine!" -Antagonist.