Hüseyin Jumpei Watanabe, who converted to Islam five years ago, is among his students. The 24-year-old who hails from Nagoya, Japan, says he was introduced to Islam while learning about the plight of Muslims in Syria and Iraq during the recent conflicts. Watanabe says he is both learning Turkish and Islam in Turkey and will convey what he learned here to others in Japan, where he studies social sciences.