MateRiaL

 is currently a four-member Japanese idol group originally formed with five members on April 27, 2021.

They made their stage debut on August 7, 2021 @majide.

Current Members

 * Akimoto Yuuki (秋元結季; ) (Founding member)
 * Tia (Founding member)
 * Nakamura Maria (中村舞彩; ) (Founding member)
 * Aoishi Yua (青石優愛; ) (Joined June 25, 2021)
 * Nakamura Yuria (中村優彩) (Joined October 30, 2021)
 * Kuroi Shirise (黒石莉世) (Joined October 30, 2021)

Former Members

 * Sakuma Noe (咲真希依) (Founding member; withdrew June 20, 2021)
 * Yuki Sara (結木咲良; ) (Founding member; withdrew September 15, 2021 )

Trivia

 * Their official description reads: A unit that launches items with a focus on materials. That's something you'll have to see for yourself... (マテリアルにこだわったアイテムを打ち出すユニット それは見てからのお楽しみ・・・)