Documentary of AKB48 Reason for Existence [存在する理由 DOCUMENTARY of AKB48]

The movie focuses on the the graduation of the the previous General Manager Takahashi Minami and now Yokoyama Yui taking over. Furthermore, the sister groups HKT48 and NMB48 are gaining popularity. Also NGT48 make their debut and the rival group Nogizaka46 become a bigger and more threatening rival.