 At the time sailing between Japan, China, and Korea was a dangerous affair, so it is understandable that many of these “immigrants” would opt to remain in Japan (or wherever it was they landed), as happened with ten Paekche monks blown off course as they were sailing to China.The elite, for the most part, ignored travelers that were not members of official missions so it is plausible that the number of immigrants such as the Paekche monks was much higher than the official immigrant count indicates.