During the 244 Wei Invasion of Goguryeo, Goguryeo’s King Dongcheon briefly retreated to North Okjeo, and in 285, the Buyeo court also temporarily escaped to Okjeo under northern nomadic attacks.
I løbet af Wei invasionen af Goguryeo i 244 trak Goguryeos konge Dongcheon sig midlertidigt tilbage til Nordlige Okjeo, og i 285 undslap Buyeo-hoffet også midlertidigt til Okjeo under nordlige nomadiske angreb.