Teacher Pak Kang Su's Korean culture classes are popular among students at Wakamatsu Chuo Elementary School in Kitakyushu.

"I want kids to make judgments using their sensitivity, even if Japan's relations with South Korea and North Korea deteriorate," Pak, 49, said.

He is one of three Korean residents appointed by the Kitakyushu board of education to teach their culture at three city elementary schools as ethnic education.