To do so , they plotted to remove Admiral Yi Sun - sin from his position .
In 1597 , Japanese decided to stop all negotiations with the Koreans and Chinese Ming Dynasty and planned a re-invasion of Korea .
To do so , Japanese plotted to remove Admiral Yi Sun - sin from his position .
In 1597 , Japanese decided to stop all negotiations with the Koreans and Chinese Ming Dynasty and planned a re-invasion of Korea .