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

Ikuta Erina no "Niigaki-san wo Ouen Suru Kai Dai Ikkai Kaigou ~Niigaki-san no Tanjoubi wo Katte ni Iwau Kai~" (生田衣梨奈の「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～」;  Ikuta Erina's "Cheering for Niigaki-san 1st Time Assembly ~Meeting to Celebrate Niigaki-san's Birthday as we Please~") is a DVD by Ikuta Erina. This event is Niigaki Risa's 24th birthday event exclusively for fanclub members. Unlike usual birthday events, where the celebrated member is usually the one who hosts the event, the only host was Ikuta herself, who is known to be a big Niigaki wota.

The DVD was sold through the Hello! Project Fanclub only. Orders for the DVD began on November 30, 2012 and where accepted through December 25, 2012.