Japan welcomed this tribute as the second coming of the 'barbarian country' Goguryeo and, highly valuing friendly relations with Balhae in relation to their struggle with Silla, they dispatched envoys.
日本もこれを「蕃国」高句麗の再来としてその朝貢を歓迎し、また新羅との対抗関係から、渤海との通交をきわめて重視し、遣渤海使を派遣した。