Become a Grandpa and Guide Yourself

Wang Lin spent the last Spring Festival of the 21st century in a skyscraper. He looked at the endless clouds below and the starry buildings around him. Slowly walked to the edge of the building, listened to the New Year's bell, and jumped down. ... "???" "Why am I not dead?" "Isn't this my hometown? And it looks like it's still the 20th century!" "So, am I reborn?" (Some data or industry technologies appearing in the book should not be taken seriously. They are all fantasy. If there are similarities, there are no similarities)