is a Japanese idol girl group formed in 2024. They are produced by Ado.
History.
Phantom Siita were formed on June 25, 2024. They released their debut digital single "Otomodachi" the next day. From July to October, they performed as the opening act of Ado's "Mona Lisa's Profile" Tour. Their second digital single, "Just Wanna XXXX with You", was released on July 31. On August 28, they released their third digital single, "Devilish Girl". Their fourth digital single, "Hanabami", was released on September 27. In October, they released their fifth digital single "Conflicting" on October 10, and their sixth digital single "Zoku Zoku" on October 25. Their debut album, "Girlhood Memories", was released on October 30. On November 1, they held their first concert at the Nippon Budokan. From January to February 2025, they embarked on their first world tour. In April 2025, the group signed with Universal Music Japan label Virgin Music. On May 17, Hisui left the group due to health reasons. They will release the single "Love, Hate" on July 9.