I'm just thinking, Is everybody sure that Reine is <Phantom> or just basing on theories in hints.
Is <Phantom> going to be featured in the anime or just even clues about her?
I always find comments about clues, hints and evidence that Reine is indeed <Phantom> and I'm still doubting about the theory even though I support it.
According to the blog of Volume 11 summary by Akiye94:
Then Phantom proceeds to touch Shidou's cheek, which caused Shidou a sense of deja vu, that he knows Phantom.
- The mystery around Phantom gets bigger
- Phantom might be someone close to Shido before she erased his memories
"When the time comes, let's meet again okay? At that time --------------
I will not let you go ever again, it will not be a mistake ever again"
- What exactly is Phantom's mistake to Shido?