Thread:Night Vision/@comment-27496972-20160908103931/@comment-8695373-20160908215955

There are at least 700 timelines where Ragna merged with Nu and was sent to the past, and Noel existed in many of them. She managed to save Ragna only in the last timeline, and the rest you got right.

There is a time skip between the end of CP and arcades of CF, so we currently don't know why and how Ragna disappeared, but it has to be explained in CF's story mode.

Lambda returned because of the Embryo, it summoned her soul from Ibukido, which is where it died. While she is present as a playable character, she does not appear in any canon story of CPEX, so I guess that she was added because mode change Nu didn't work well.

Ragna's page, as well as many others, needs a lot of editing, but currently I am unable to do it, so I have to rely on other people for this, or wait until I'll be able to edit properly.