Yanagi Ryuken is a very powerful man indeed. He is able to use psychic powers to make his opponents pass out. He claims to be a master of the Kiai discipline.
Unfortunately the early UFCs never included a fighter from a psychic power discipline. If they had who knows if jiu-jitsu would have even caught on. After all, if Yanagi Ryuken was in UFC 1 he would have surely defeated Royce Gracie with his masterful technique.
Enter Iwakura Goh, an MMA fighter who wished to challenge Ryuken. Somehow, Ryuken not only accepted, but wagered $5000 he would win. He did not win. Ryuken did not win because his psychic powers are not actually real. His reality crushing moments are documented in the video below.