[7] The song "Pierce" was featured on the final season of Fairy Tail as an ending theme.
[15] The group was scheduled to hold the Super Feeling Good Tour from May to June 2020, however it was cancelled due to the COVID-19 pandemic.
On March 17, 2021, Empire released a special single featuring new versions of "Don't tell me why" and "Tokyo Moonlight".
[20] They held the Empire Dope Magic Tour from April to June 2022.
It was announced at the concert that they would re-debut as members of ExWhyZ under EMI Records later that year.
[23] ExWhyZ released their debut album, XYZ, through EMI Records on November 2.
[26] XYZ was re-released on March 1, 2023, as XYZ [Hyper Edition], consisting of all of the original songs from the regular album but re-arranged to include vocals from Midoriko who was on hiatus at the time of the initial album recording and one new track.
[34] On November 16, ExWhyZ performed at The Underworld in London alongside ASP and AinatoAoi (a duo consisting of Aina the End and dancer Aoi Yamada), as part of WACK's first multi-artist concert to be held outside of Japan.
[35] On January 12, 2024, they released a cover of Shinichi Osawa's "Our Song",[36] followed by the digital single "Unknown Sense" on February 2.
[37] Both songs feature on their third studio album, Dress to Kill, which was released on March 20.
[40] After being on hiatus since July 2023, Midoriko left ExWhyZ on August 7 due to the worsening of her chronic illness.
[42] They performed in London for the second time alongside ASP and Mameshiba no Taigun Tonai Bousho a.k.a.