On a certain day in a certain year AD, Lin Yi, who was eating pancakes, met a suspicious old man and reached out to him for a cigarette.
Then he died.
On the second day of a certain month in a certain year AD, Lin Yi and the old man had a heart-to-heart talk on the bench in the park.
Then died again.
On the third day of a certain month in a certain year AD, Lin Yi said that he was destined to make some useful contributions to society, and hoped that the old man would be merciful.
So this time he died and never woke up again...
[Inference: How did the protagonist die? CP: Dugu Qiubai devoted himself to his work and conquered X and then accepted the situation in the world.