Iku Iku means - "I'm cumming, I'm cumming" in Japanese. The restaurant is a concept restaurant, being based around the story of a young boy named Daiken (big sword) who was always embarrassed by his manhood as a child, but then later became the most famous male pornstar Japan has ever known. Due to the enormous amount of fame he received he decided to leave Japan, donate all of his wealth and live a simple life as a Gyudon restaurant owner in Thailand.