Tetsuya from Tokai On Air is filming a video with his friends, including Yumemaru. They are trying to make a ball out of aluminum foil by hitting it with their hands. The goal is to hit the ball 1000 times to see how strong it becomes. Throughout the video, they make jokes, tease each other, and have fun while trying to achieve their goal. Eventually, they invite another person, Masuda, to come and challenge Tetsuya to a fistfight to test the strength of the aluminum ball. After the fight, Tetsuya discovers that his hand is injured, but he is still able to break a bottle of sake with his powerful punch. However, he realizes that he cannot become inhumanly strong and decides to stop using the aluminum ball.
Here are the key facts extracted from the text:
1. The speaker, Tetsuya, has a hand injury from stopping a PK (punch) earlier.
2. Tetsuya is making a metal hand using aluminum foil to prevent similar injuries in the future.
3. The process of making the metal hand involves wrapping aluminum foil around a ball.
4. Tetsuya has used up 5 rolls of aluminum foil, which is 125 meters long.
5. The metal hand is being tested by hitting it with a fist to see if it can withstand the impact.
6. Tetsuya is planning to duel with Masuda, and he wants to use his metal hand to gain an advantage.
7. Masuda has arrived, and the duel is about to begin.
8. Tetsuya's metal hand is being put to the test as he punches Masuda.
9. The duel ends with Tetsuya emerging victorious, but with some damage to his metal hand.
10. After the duel, Tetsuya tests the strength of his metal hand by punching a bottle of sake.
11. The bottle does not break, but Tetsuya's fist is injured.
12. Tetsuya realizes that he cannot become inhumanly strong and decides to give up his metal hand.
Note: Some of the text appears to be a conversation or a script, so I've tried to extract the key facts that are not opinion-based or conversational.