The Ginki Chapter in Japan (Head: Kim Seong-dae) held a series of lectures on unification at the grand auditorium of Osaka Headquarters of Mindan or the Korean Residents Union in Japan at 3 pm on May 23, 2015 in order to foster understanding of unification and policies concerning North Korea in the Korean community in Japan and to gather opinions on unification.

Professor Kim Young-soo of Sogang University, delivered a special lecture on "the pressing issues of South and North relations and preparations for unification”; this was followed by a lecture by Ko Hakchan, president of the Seoul Arts Center, on "art and communication and unification.” Attended by more than 200 people including representatives of Mindan, North Korean defectors, and young students, the lectures kicked off with congratulatory remarks by Ha Tae-yoon, general consular of the Korean General Consulate in Osaka, and Jeong Hyeon-kwon, head of the Osaka Headquarters of Mindan, who emphasized their determination to renew efforts toward greater solidarity and growth of Mindan.