 As Shim-On, prime minister and father of the queen, was one of the most influential men of the country, his presence could not be ignored.Furthermore, "Western Minister" Park Eun framed Shim On by revealing that On's influence was overflowing .At this time, Shim-On had fulfilled his duty of Prime Minister by visiting the Ming Empire as an emissary of Joseon at Saeunsa (사은사; 謝恩使).