The walk would be nice -- though she figured he might be paranoid from it. Taking hold of Ego's hand before the brunette could bust a gasket case and make this all the more awkward, they were out of the door -- rain failing to connect to the two sisters by a mere thought of not wishing to be wet -- and...ah? Gunshots rang out, bringing confusion to the Tamer until she felt both of her familiar's aura kick up. That smell...
...Demons?

[b]"...Eika."[/b]
Ego was instantaneous in her movement, as was her sister; practiced and performed time and time again, Id stepped back to take hold of Eika's free hand and brush her hand above herself, her Master, and the human accompanying with a shimmering light as Ego stepped forward with her hands manipulating a dark, pulsating orb between her palms as the demons formed far and wide from the downpour. 
[i]"Be careful. Don't lag behind. You know she'll be upset if you're hurt."[/i]
[b]"Keep her safe. Big guy's still around if you get cut off. Yo, human. Hunter, whatever your name is...You better not be leading my Master into anything harmful!"[/b]
And then?

The most hideous smile that a beautiful girl like her could ever create with her delicate features as she simply dropped the orb down before her, the pulse traversing through the grounds before them in order to allow black spikes to erupt our from the magic created and shishkabob the poor things that'd actually opted to land on the ground. Meanwhile, Id tugged on Eika's arm to guide her with Hunter as they both backed up into the library-

[i][b]CRASH.[/b][/i]

A window being smashed in, the tiny nuisances began to flood in as Id threw her arm out to slam the doors to the library shut and began to tug Eika -- Hunter subsequently following -- up a flight of stairs in order to provide the latter with what he needed -- familiar grounds.
[i]"They're in the library already, as expected. Come! We can get to the roof up here. Eika, remember it like class before. The moment my hand leaves yours-"[/i]
"I call him out. Understood. Hunter, we should hurry. They may be small, but a lot of them can over-run Voracia and Ego quick enough that some of them will be able to slide past while they're kept busy... Id, can you send a signal?"
The demon slammed the door leading into the staircase shut, barring it with magic in order to force the demons to begin clawing through it if they wanted to reach up to the trio in the slightest, and then the rush began as the need to protect the blind girl came roaring over the otherwise gentle female.
[i]"It'll be seen better if it's on the roof, but...Hunter, you need to be ready to clear it of anything up there. I can keep the rain off afterwards. ...They're all over the campus...So the city must be just as bad, if the rain is reaching throughout it..."[/i]

No time to think. It was just time to go, go, go! Worrying over the larger populace could come later! The first thought on Eika's mind -- and what Id picked up on -- was to inform any students lurking through the halls if the gunshots didn't do it, and hopefully meet up with them.