After that, Pusanpo was also opened again because the capacity of the port of Seiho was not large enough to deal with all transactions; however, an incident called Saryang Incident (the raid carried out by Japanese pirates on Saryang Islands) occurred in 1544, and this brought a diplomatic break between these parties again.
その後、薺浦一港での入港受入れは難しいとの理由から釜山浦も再び開かれるが、1544年に蛇梁倭変が起こり再び国交は断絶する。