Siheyuan: God-Level Sign-In, I Am Invincible

Mottled walls, dim light, and a faint musty smell in the air. This is not the home I remember. Look at these hands again. They are rough and strong, and there are calluses left by years of holding guns. A thought flashed through me: Have I traveled through time? Haha, it's such an old-fashioned plot. However, let's make peace with it. I'm not the kind of person who gives up easily. Especially when a mechanical voice sounded in my mind: "The god-level sign-in system has been activated. Do you want to sign in?" This time travel welfare is really timely.