Cygnuses are unavailable.

This.

I got alot of questions after watching this video.

1. Why Mihile rush to dead Shinshoo, does it mean anything?

2. Do Cygnus' three drops of tear revive Shinshoo?

3. Who is the one that appears about Shinshoo after it is being revived? Empress transforming? lol

1. I'm guessing that Mihile and the others only just found Shinshoo dead, or were unable to get involved in the battle that killed her, he's running towards her to check if she's dead.

2 and 3. Cygnus overreacts to seeing Shinshoo hurt and possibly dead, she starts crying and the overflow of emotions releases her latent powers. How much emotion have we ever seen Cygnus show? and now with the World Tree residing in Shinshoo's gem, and she gains her power from Shinshoo, it's very likely that she gained more power than usual. The power causes her to transform magical girl style.

One thing i'm wondering about though is her facial expression. She doesn't look like an innocent little girl anymore, she looks rather tense and... dark. Is the next part of the story Cygnus using her newfound powers to get revenge on Damien and she powers up her army to allow her to do so? If so, awesome.