Isshinryu lineage: Moden Yabiku → Shinken Taira → Tatsuo Shimabukuro
Moden Yabiku was born in 1878 in Shuri and was the eldest son of four children. His father, Mayo Yabiku, was a strict but fair man who demanded much from his children. Because he was such a frail and skinny boy in his youth, Moden Yabiku was nick named "scarecrow" and was often teased and bullied by other children. Like many of his contemporaries, Yabiku resolved to make his body and mind strong and as a result began the study of Karate under Ankoh Itosu and Ryukyu Kobujutsu under various teachers.
After graduating from the Okinawa Prefectural teachers College, he taught at Bito elementary school. Already by this time he had excelled in his Karate-do and Kobudo training. It was also during this time that he began to teach Karate and Kobudo formally to the local people of Bito.
Around 1911, after moving to the Japanese mainland in search for better work, Sensei Yabiku founded the Ryukyu Kobujutsu Kenkyu Kai (Ryukyu Kobujutsu Research Association) in order to promote and popularize Kobudo throughout Japan. Sensei Yabiku's dojo was probably the first Ryukyu Kobudo dojo on the Japanese mainland which openly taught to mainland Japanese. Besides his talent in Karate-do and Kobudo, Yabiku was known as a master story teller and would enthral his students with stories of the old Okinawa Bushi of a by-gone era.
In his daily life it was said that Yabiku was constantly challenging himself through the study of Budo by always trying to overcome his physical and mental limitations. He is known, for example, to have worn iron geta (clogs) from morning to night in order to strengthen his legs and hips! To strengthen his arms and hands, he would grasp the frame of the ceiling of his home and travel around its perimeter using only his arms.
On a personal level, Moden Yabiku was said to have been a deeply religious man who did not drink alcohol or smoke and was never heard to say a bad word against anyone.
Moden Yabiku died on June 23, 1941 at the age of 63.