Although the relationship was once severed following the Sanpo disturbance that erupted in 1510, Jinshin Yakujo (immigration rule where the Korean Dynasties warned the So clan) was concluded in 1512 and trading was resumed.
1510年には三浦の乱が起こり一旦は関係が断絶するが、1512年に壬申約条が結ばれ再び貿易は行われる。