Its sales exceeded those of the previous single, with over 400,000 copies sold on its first day and over 513,000 in its first week.AKB48 member Mayu Watanabe appeared on the cover of the December issue of the idol magazine UP to boy with Airi Suzuki from the Japanese girl group Cute, the first gravure collaboration between Hello! project, collecting donations for earthquake and tsunami relief.
The promotion was later canceled by Def Star Records amid concerns about possible violations of antitrust laws.
The group released its 11th major-label single, "10nen Sakura", on March 4, 2009.
and the word "team" was dropped from "Team Kenkyuusei" for the group's alternates.
Four days later the group announced at a handshake event that Aimi Eguchi, who supposedly auditioned for NMB48, would join AKB48 as a trainee.
Aika Ōta was transferred to HKT48, Aki Takajō and Haruka Nakagawa to Jakarta-based JKT48 and Sae Miyazawa and Mariya Suzuki to SNH48.