A samurai in Camelot

You are a young martial artist who won the most important karate tournament in your city. You're driving home in your car the day after the tournament ends and the light turns red. After the light turns green, everything goes dark and the last thing you hear is a car tire screeching. You wake up in a forest and realize that you are wearing knight armor, your sword is out of its scabbard and a horse next to you is dead. You hear a fight and realize that a knight is fighting bandits alone and you count seven. You find a longsword and decide to help the knight. The knight is impressed to see you helping him with his kenjutsu training. After you and the knight defeat the bandits, you and the knight introduce yourselves. A few hours of riding, you reach the castle and finally enter the castle. He takes you to a room where there is a huge round table. There, you see a man of approximately 40 years of age wearing armor and a royal crown and he is gathered with other knights. The knight introduces himself as Lancelot du Lac and he says "Welcome to the Round Table!"