However, with discontinuation of Kentoshi after the last delegation in 838 (some argue that 894 was the last year of Kentoshi but it is widely accepted that since Ambassador SUGAWARA no Michizane recommended the cancellation to the emperor, there was no Kentoshi in that year), opportunities to invite fine toraijin from Tang in the continental mainland were lost (Japan's relationship with the United Silla was not as close as that with Baekje).
しかし、838年を最後に遣唐使が廃れた（894年を最終回の遣唐使とする説もあるが、この回は大使・菅原道真が中止を勧上して実際には行われなかったとする説が有力）ことにより、大陸本土の唐から優秀な渡来人を招聘する機会が失われた（朝鮮半島の統一新羅とはかつての百済ほどの親密性はなかった）。