City: the Old Man's Unnatural Life

Old Man Li was originally a 90-year-old great-grandfather who got the system from it and took care of his great-grandson's daily life. Invincible Old Man System Report Great-grandson: Grandpa, you are so strong, you can break this wall with just one punch Li Minghao: Grandpa, I am so handsome Li Minghao is a person who traveled through time from zero to 90 years old, and his descendants are billionaires. There is no master of martial arts who has been strengthened by the system. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.