Kim Sŏngil (born 1538)

[1] Kim Sŏng-il was selected as vice-ambassador, along with Ambassador Hwang Yun-gil, from the Western faction, and fellow Easterner Ho Song as recording secretary.

The audience did not follow Korean or Chinese diplomatic procedures; the expected feast was neglected, and Hideyoshi brought his one-year-old son into the hall in the middle of the proceedings.

He gave the ambassadors a letter thanking King Seonjo for "surrendering" to Japan, and telling him to use the Korean army to invade China when Hideyoshi ordered him to.

[5] Kim believed Hideyoshi's intentions towards Korea to be peaceful, and upon returning from Japan in 1591, he advocated that King Seonjo not take precautions against a Japanese invasion.

Minister of the Left Yu Sŏngnyong broke with the Eastern faction and allowed some defense preparations to be undertaken, and began appointing new army commanders.

Kim Sŏng-il was appointed as commander of the Kyongsang Right Army, which guarded Kyŏngsang-do, the province closest to Japan which contained the strategic port city of Busan.