Tiway Sayion's Japanese teacher gave him a Japanese name when he was 12 years old. Two years later, Taiwan reverted to ROC rule. The new government decreed that all aborigines had to adopt Chinese names within two years. Responsibility for registering the new names was given to a non-Ami town clerk.
李來旺回憶，十二歲那年，他的日本老師替他取了「木原胸吉」的日本名，還沒等叫習慣呢，兩年後國府接收台灣，又規定原住民要在兩年內全部改為漢名。