Nippon! Shinkocchou

 (にっぽん!真骨頂) is an idol group formed as the official rival group of Nankini!. They held their pre-debut live on March 24, 2023 and officially debuted on April 9, 2023.

Members

 * Moriya Mei (森谷芽育; )
 * Hiiragi Nazuna (柊なずな; )
 * Nozuki Ruka (野月琉加; )
 * Hayase Kanon (早瀬花音; )
 * Koori Ria (小織りあ; )
 * Yamamoto Yui (山本優衣; )
 * Himeno Yuma (姫野ゆま; )