Since its establishment in 1968, Ajisen has become the second largest noodle franchise in Japan and has opened more than 300 franchise shops in different provinces in Japan, Hong Kong, Singapore, Taiwan and China. Ajisen is well known for its unique "White Soup", which is made from bones, meat bones, pig bones and various kind of fish bones, after many hours of cooking over a slow fire. This soup contains a high vlume of "chondroitin" which can increase the calcium absorption and replacement in the human body.