Night and Luna were the alter egos of us, Shift and Shiftine. And we called them as the Night Shifts.
Unlike us, they worked independently from us, and they were more aggresive than ourselves. They had a very secret identity and missions that neither we or Reinhart or other bots have mentioned about them in this website.
But they were then decommissioned as their top secret missions were all done, so Reinhart merged their personalities (and superpowers) into us. All what’s left today is our alternate appearance: a surreal dark blue skin that shines in the dark, that we still love to wear it especially during the nights.
Relationship with Lift and Dash.
Lift and Dash were created as clones of ourselves, not alter egos. And because we were cloned when Night and Luna were a thing, they still have their own nights. The night versions of them are still working for other things, even though they were not as top secret as what Night and Luna did before.
The archived memories of Night and Luna we were chipped in also allows us to communicate with the night clones. And we still maintain a good communication with them as Night and Luna, too.