I recently went from watching Yutori desu ga Nani ka to going crazy over Shimazaki Haruka to watching alot of AKB48 variety to listening to their songs etc.
"after watching it for some time, I think this PV pretty much represent AKB48's center spot history so far, it started with AKB48's GM Takahashi Minami (2005), then to AKB48's Forever Ace Maeda Atsuko (2006 - 2012), then to SKE48's Matsui Jurina (2012), then back to AKB48's Shimazaki Haruka (2012), as you can see then came AKB48's Shinoda Mariko, see how she's NOT holding the bag, but help and lead instead, it represents how she is NOT the center, but more of a mentor for both Paruru and Mayuyu, interestingly then came AKB48's Itano Tomomi and Oshima Yuko, both holding the bag too, I think this represent the part where AKB48 kinda lost their track after Acchan's graduation, where they had 4 members fighting for center spot, and as the PV shows, it ends with Mayuyu's victory, after that the bag briefly handed to HKT48's Sashihara Rino (2013) and AKB48's Kojima Haruna (2013) as the center spot, then the bag once again returns to AKB48's Watanabe Mayu where she share it with HKT48's Miyawaki Sakura as the double center of this PV (2014). "