This is my theory about Evanescia being a Pure Child of Anasrava based on my observation. I already played 4.0 and I noticed some details that might connect Evanescia for being a Pure Child of Anasrava. We already know what happen to Cyrene during 3.8. She sacrifice her future to close the loop to prevent Irontomb to born again that can cause the cosmos to obliterated and everytime she goes back to the starting point, she loses her memories.

While playing 4.0, It seems no one recognises Eva or sees her as evident to the class picture March shows to TB where her face are redacted and when Welt, Himeko, and Pearl visited the Gingko tree, Eva did not appear to them or those 3 did not see her. When she appears and meets TB for the first time, only her upper half of her body goes outside to pull TB inside that might be prove that she is trapped inside the painting.

If we compare to what happen to Cyrene and my observation of Eva, I can assume they are much parallel to each other like the involvement of the "memory loss" where Cyrene herself loses her memory (**Her memories of everyone**) at the starting point of the loop while the memories of the people (**Everyone's memories of her**) in Planarcadia regarding Eva are not present to their mind. Cyrene is trapped in the **Time** Loop while Eva trapped in a contained **Space** which is the painting. 

But of course we can wait for the future patches to find out what is the truth about Eva which I think the earliest would be in 4.2. The leaks stated that she is a normal Elation but I think if if confirms that she is a Pure Child, then a SP of hers might be possible. 

Evanescia as Pure Child of Anasrava