On December 31, it was announced that Washio Reina would be departing from LDH JAPAN and from Sony Music Labels on the same day. It was also revealed that she would be transferring labels to LDH Records starting on January 1, 2024.
On February 7, it was announced that Girls² member Ishii Ran will be graduating from the group and leaving the agency SL Square LLP (a joint management business between LDH JAPAN and Sony Music Associated Records) at the end of March in order to pursue activities as a solo artist. Following her graduation, Girls² will be holding a fan meeting in April with the remaining 8 members.
On May 18, it was announced that Happiness and iScream would collaborate for a new CL program titled Happiness×iScream "Joshikai", and in the first episode of the program aired in the same day, it was revealed that Happiness members SAYAKA, Kaede, MIYUU and Kawamoto Ruri, and iScream member RUI would be promoting overseas as part of a new project. A few days later, on May 21, the members made a surprise appearance at the Anime Central convention in Chicago, USA, performing as the opening act for the artist and YouTuber DEMONDICE. For the announcement of their performance, the official Anime Central Twitter account referred to them as SG5, even though no official information on the unit's name had been released yet by LDH itself. LDH JAPAN later revealed that Happiness and iScream would continue to promote as usual despite this new project.
On December 28, during the LIVE×ONLINE BEYOND THE BORDER E-girls LAST LIVE concert, it was announced that Takebe's new group will be SWEET REVENGE, which will include 4 other members. After E-girls' disbandment, she will also change her stage name to YUZUNA.
On December 15, YURINO and Suda Anna announced that both will be leaving LDH JAPAN following E-girls' disbandment on December 31. Both members made this decision after E-girls decided to disband, and after reflecting about it, they also want to face new challenges and start a new life after the disbandment. As for their respective groups, Happiness will continue activities with the remaining 5 members, while Sudannayuzuyully will be also disbanding on December 31 as Takebe Yuzuna would be the only remaining member in the group. In addition, it was announced that both groups will be performing at the LIVE×ONLINE BEYOND THE BORDER E-girls LAST LIVE on December 28 as YURINO and Suda's last activity in Happiness and also the last activity of Sudannayuzuyully.
On June 15, with the announcement of LDH's new entertainment platform CL, EXILE HIRO revealed that the members and staff were in discussion about the group's disbandment as the members expressed of wanting to meet the fans for at least one last time, and depending of the circumstances, it could get delayed to 2021. On November 28, they came to a consensus of going on with the disbandment plans as originally planned for December 31, 2020. Following the announcement, it was also announced that the E.G.family project will also be discontinued, with the mobile site of E.G.family being renamed LDH Girls mobile on January 1, 2021, and the fanclub website E.G.F.C. will be closing in the same day.
In the announcement, it was revealed that after discussions with LDH's coronavirus specialist team, they stated that it is very difficult to hold the concerts with 100% of the audience attendance following the current state of the COVID-19 pandemic in the country. Due to this, all scheduled concerts from February 26 to December 26 are cancelled, with the tickets of all cancelled shows being refunded. In addition, LDH plans to hold a new form of live entertainment in accordance with the guidelines of Japan's government, which is planned to be announced in LDH's website on June 15.