Atlantis Castle

 (アトランティス城) was an RPG-themed idol unit formed in 2015 and disbanded on April 30, 2017.

Former Members

 * Irene (アイリーン; ) - Assassin (Graduated January 2016)

Team Sky

 * Ameme (あめめ; ) - Mechanic (Graduated February 2016)
 * Seira (セイラ; ) - Bard (Graduated August 2016)
 * Mia (ミーア; ) - Fighter (Graduated August 2016)
 * Saaya (サーヤ; ) - Beast Tamer → Thief
 * Yukichii (ゆきちぃ; ) - White Witch (Graduated December 2016)

Team Dungeon

 * Sakumi (さくみぃ; ) - Dancer and Healer
 * Moyu Moyu (もゆもゆ; ) - Gambler (Graduated August 2016)
 * Taiga (たいが; ) - Alchemist → Knight
 * Sally (サリー; ) - Summoner → Black Witch

Discography

 * 1) [2015.08.05] Sorrowful Antithese ~Unreal & Shadowly~ (哀しきアンチテーゼ～Unreal & Shadowly～)