C644 Pushed into a Corner!

With a creaking sound, the side door opened, and an old man walked out from the door.

The old man looked to be in his fifties. Although he was not young, his body was very strong. His back was straight, and his age did not match his appearance. If one did not look at him from the front, but from the back, one would definitely think that he was a young man in his twenties. However