The sibling trio.
They are all consider rebooted versions of their past selves. All their past memories came from the show's videos on YouTube. Due to this they all have gaps in their memories.
Because of this they all decide it's not even worth the effort to keep hating each other and to just be civil. This civil agreement resulted into them creating new bonds.
They semi get along, at least not actively trying to kill each other. It just takes time.
Also Sun and Moon legit do not know these three have been talking to each other.








