A wannan lokacin, an rarraba tsibirin Koriya zuwa masarautu uku: Goguryeo da aka ambata a sama a arewa, Baekje a kudu maso yamma, da Silla a kudu maso gabas. Buddha ya isa Silla ne kawai a karni na 5, amma an sanya shi addinin jihar ne kawai a cikin wannan masarautar a shekara ta 552. A cikin Goguryeo addinin 'yan asalin Koriya ya ci gaba da rinjaye, yayin da addinin Buddha ya zama mafi yadu a Silla da Baekje (duk yankunan da ke Koriya ta Kudu na zamani). Tambaya: Menene tsohon jihar Qin ya yi don gabatar da addinin Buddha?
Goguryeo