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Aruliel, the Weeping Angel, since she joined a week ago (in the outside world) that she had been working hard to work out her abilities and also open up some more. She was surprisingly talkative at the beginning, so it was easy for her to open up some more with everyone, ending up interacting with everyone greatly and without problems.
She quickly made up a lot of friends and allies due to her cute and cheerful nature, and many of the kids in there liked her too, seeing her as a cute big sister-like figure. She had also been training her abilities some more, although her techniques and magic were still inside of her mind, she had to relearn them for a bit now, and practice them over again, alongside slowly getting used to her new power using the fragments fused into her body.
Check "The Protagnist's Sister Is Actually the Strongest"!