Kenshi Takahashi is a descendant of the Taira clan, a foremost family in ancient Japanese times. During the Siege of Aomori, they were thought to be wiped out completely, having lost their cherished sword Sento in the process, but were truthfully hiding themselves from the world at large. Kenshi had his eyes stabbed by Quan Chi and therefore lost his ability to see. He can sense the area around him so long as he has his sword Sento in hand, but he cannot see either way.