I Found My DNA in the Corpse of a Thousand-Year-Old Woman

Looking for a Book, Who Has Read This One, the Anchor Will Doubt Himself

The general content is that the protagonist lives with his sister. After get off work, his sister went to bed and found that her sister seemed not to be breathing. Strange things happened. He ran to a friend's house and found that something was wrong with his friend. He met an old classmate. When his sister went missing, he discovered that there was a hole under the sister's house.