In 554, he met the Baekje armies at Gwansanseong Fortress (present-day Okcheon, South Korea), killing King Seong and four of his ministers, and taking some 29,000 prisoners.
In 554, the individual engaged with Baekje forces at Gwansanseong Fortress (present-day Okcheon, South Korea), resulting in the death of King Seong and his four advisors. He also captured approximately 29,000 captives.