SDN48, a Japanese girl group formed in July 2009 under the direction of producer
Yasushi Akimoto, was created as an adult-oriented counterpart to AKB48.
Initially composed of twenty members, including four from AKB48—Kayo Noro,
Yukari Sato, Megumi Ohori, and Kazumi Urano—the group aimed to provide Saturday
night performances for a mature audience. SDN48's debut single "GAGAGA" was
released on November 24, 2010, marking their entry into the music scene. The
group continued with subsequent singles such as "Ai、Cyuseyo" (released April 6,
2011) and "MIN・MIN・MIN" (August 17, 2011). Th...