Hololive announced Coco's graduation as a VTuber for July 1, 2021. A final stream is set for that day.
Coco talked about her retirement in more detail in subsequent streams. Among other things she stated that she won't disappear from the other Hololive members' life IRL when retiring as a VTuber. She will still live with Kanata in the same place, continue to watch and enjoy Hololive streams and be there for them as a friend.
As the first properly graduated member, other members are permitted to talk and reminisce about her later. The content of her channel except for members-only stuff won't be removed.
The event will be a way to say thank you, and will feature talk segments, in which Kiryu
Coco and invited guests will look back on her memories with her generation-mates and other hololive members, as well as concert segments where she will perform songs that hold a special meaning for her."