Record of Reverse Death

Every time the protagonist lives one year, Heaven will send down a "death disaster" of corresponding intensity, from lightning strikes, ground sinking, to obliteration by the law of cause and effect. The further it goes, the more terrifying it becomes. Ninety-nine dying people are required to voluntarily donate their remaining lifespan to fight against the death disaster of Heaven. After the death of each person who sacrifices life, the soul belongs to the protagonist. There is a half-broken black book in the protagonist's right hand. He can see the remaining lifespan of others, but every time he uses it, he will accelerate his own death disaster.