A-T-T-A-C-K

History

 * On January 30th, 2018 trainees Rika and Ami were announced as the first members of the group. It was announced then that Rika would be the Leader and Ami the sub-leader.
 * On July 23rd, 2018 A-T-T-A-C-K's audition winners were announced.
 * On August 30th, 2018 the member colors were announced. The group's debut single was announced for January.
 * January 12th, 2019: 1st single: The Battle's Begun; Just Wait. 
 * June 20th, 2019: 2nd single: Start To Finish; Pause! 
 * November 8th, 2019: 3rd single: Make My Way; Victory Pace. 
 * On January 7th, 2020 it was announced that A-T-T-A-C-K would be disbanding at the end of their summer tour due to the members wanting to go their separate ways. It was also announced at this time that Rika and Ami both would be joining C.U.T.E. Leila announced she would be becoming a soloist for the P label.