Ichiran Ramen is one of the more popular ramen chains in Japan. They specialize in tonkotsu ramen which is ramen with a soup base of pork bones broth. Tonkotsu ramen originates in the Fukuoka region of Japan. Ichiran ramen began with a single store but started to expand into more in 1993. They also have a lot of overseas location in the US and Asia. According to their website, they originated the Original Spicy Red Sauce, Aromatic Tonkotsu Broth, Solo Dining Booth, Order Form
and Kae-Dama Ordering System.