Further, the Cooperative Association continually recruited farmers from Taiwan to come to Ishigaki. Local residents became deeply fearful that Ishigaki would be taken over by these outsiders, so they began to take steps to block immigration.
加上大同拓殖株式會社又不斷從台灣招募農民前來墾殖，當地居民深恐石垣島會成為台灣人的天下，便展開了阻撓的行動。