The Weeks I Was the Creator

Li Youcai, an otaku who has been repairing computers in a Beijing alley for ten years, is suddenly forcibly appointed as an "intern creator" by the mysterious power of the universe. He has a probation period of five weeks and is responsible for solving the most difficult civilization crisis in the universe. Then he finds that all he has is an old mobile phone that has been struck by lightning and 1% of the battery.