It is said that Emperor Jimmu may not be a real Emperor. In myth it is said that he conquered the present Nara region from northern Kyushu and created a capital in Yamato. However, recent theory suggests that the ancient Japanese lived in the southern part of the Korean Peninsula and were a big force. However, it seems that they actually lost to China and Korea, lost the territory of the Korean Peninsula, and fled to Nara via Kyushu. I think I adapted this historical fact. So even now, the Japanese hate Korea and Korea.