Sento

Sento is an ancient katana blade wield by the blind swordsman Kenshi and it belongs to his long-lost ancestors, the warrior monachs of both Asia and Europe in Earthrealm known as the Warrior Kings. It made its first appearance in Mortal Kombat: Deadly Allaince. It also reappears in Mortal Kombat (2011).

Histor
The mysterious blade Sento was wielded by the Warrior Kings for many generations. Until it was no longer use and was placed on the Well of Souls in the tomb of the Kings inside the House of Pekara. It was remained unused and undisturbed.

Centuries later, a young and proud fighter, Kenshi who lived by the sword, was approached by an old man called Song who offered him a powerful weapon, a sword that will make him the greatest warrior that ever lived. Kenshi agreed to this. He went with Song to an ancient temple and enters alone there alone. He passed through the underground labyrinth that was under the temple, and found himself in the catacombs.