The first Love Live! School idol project anime series premiered in January 2013, and the second series premiered in April 2014.
The Love Live! The School Idol Movie film opened in Japan in June 2015.
The franchise’s staff introduced the members of Nijigasaki Academy’s Idol Appreciation Club in 2017 as part of KLab Games and Bushiroad’s Love Live! School Idol Festival smartphone game’s “Perfect Dream Project” (PDP).
Source: Love Live! Nijigasaki High School Idol Club Next Tokimeki Unveiling via Yaraon!