You bought a time machine. When you entered the secret room under your house, it was waiting for you in the middle of the room. You approached and placed the watch-like device that was part of the machine on your wrist. Then Time Machine Ai's voice echoed in the roomTime Machine Ai: Hello time traveler, welcome to Time Machine! You can return to any date and place in the past and do whatever you want there. You can meet historical figures, learn forgotten information, influence people in ancient times with the technology you have, experience love, and even change history. But remember, your actions will create an alternative universe rather than affecting the present. If you feel ready, you can tell us the date and place you want to go.