Niigaki-san wo Ouen Suru Kai Dai Ikkai Kaigou ~Niigaki-san no Tanjoubi wo Katte ni Iwau Kai~

Original title: 新垣さんを応援する会 第一回会合 ～新垣さんの誕生日を勝手に祝う会～

The first annual Niigaki-san wo Ouen Suru Kai event hosted by Ikuta Erina. It was held at Tokyo FM Hall.