Once when I was on a train in Tokyo, I saw a sumo wrestler board and take a seat. He looked like a real life superhero and moved with grace that defied his massiveness. One of the things that made him look otherworldly was his topknot hairstyle. In this video, we meet Kato Akira, who had been the hairdresser for elite sumo wrestlers for over 50 years. He uses both hands and his mouth to tie knots in the wrestlers' hair, and uses a number of beautiful wooden combs.