Japanese Swords with Legends

Throughout the history of Japan, some Japanese swords have been handed down to the present day, along with the various legends associated with them.
I will be present some of the most famous legends along with well-respected Japanese swords.
We can see this sword (the left picture below) in the Tokyo National Museum.
Can you believe that this sword is used to slay demons (the middle picture below)?
According to legend, the warlord and the samurai under his command used this sword to kill the leader of the evil demons and destroy them.
I will present five legends and swords.
Please come and enjoy the presentation.