Keyakizaka46 (欅坂46; formerly known as Toriizaka46 (鳥居坂46) pre-debut) is a Japanese female idol group produced by Yasushi Akimoto, and it is the sister group of 乃木坂46. 20 girls were selected for the first generation and were announced on August 21, 2015. On November 30, 2015 an "under group" was announced under the name of Kana Keyakizaka46 (けやき坂46) with Nagahama Neru as the only member. The group released their debut single, "サイレントマジョリティー (Silent Majority)" on April 6, 2016.