Yeah, its a missable cutscene. Angie is actually anju+ Indriad fused somehow. Also the Mansion is time travelling or some shit, else the timeline makes no sense, particularity the fact that Anju in the mansion isn't old.
Also, wtf is up with Yveltal?
1. He's the counterpart of Xerneas, the mascot of Reju (even though there's literally no mention of him whatsoever but nvm that for now)
2. he's with Taelia attacker, even though Red haired girl said that there was no collaboration between them, which means either:
A- red haired girl has betrayed Madame X.
B- Yveltal was owned by someone else at the time.
B is more likely since Madame X doesn't seem to recognize Aelita or Keta at all- hell, Madelis makes him an admin and she's fine with that.
Speaking of the soul eraser, Narcissia actually witnessed the culprit of the wispy tower burning- its a girl with black hair and a black dress, and she smiled cruelly at Narcissia as she vanished. Despite the hair fitting, that doesn't sound like Madame X at all to me. Also, can we speak about the fact that Vitus apparently died there? Even Geara thinks he's dead.
3. We get this info in Xen backup lab:
"???: Yveltal. Height: 19'00. Weight: 447.5 lbs. Type: Dark/Flying. Ability: Dark Aura. The Yveltal is the key. The Yveltal is how he knows. Yveltal is how he spies. He stalks us."
"???: Upon the death of Yveltal, it sucks the life force from every living thing around it and then reverts into a cocoon. I believe that this is his trap. It's a fail safe. A way to get back if all else fails. I have to find a way to destroy Yveltal while also preventing the impending doom that is a result of its own demise. If I can do that, then I win."
absolutlly no clue who this is, but notice how he refers to Yveltal owner as a "he". Madame X father maybe?