大和時代
Baekje continued as the military and economic power it was during his father's reign. Geungusu maintained friendly relations with China and Yamato period Japan. He is recorded in the "Nihonshoki" as having sent the noted Baekje scholar Wang In to Japan with copies of the Analects of Confucius and one copy of the Thousand Character Classic. However, on the basis of Korean accounts some believe that this took place decades later, in the reign of King Asin.