The Invincible Hero in the City

A middle-aged down-and-out uncle got into a car accident due to drunk driving. Unexpectedly, he got a blessing in disguise. He returned to the age of 18 one month before the college entrance examination for his senior year of high school. With the help of a mysterious system, he became free in the city. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.