[Harry Potter] She's a Witch

"Who are you?"

"Ivena Ambrosius, your future guardian."

Tags:

* Based on the "Let's Meet at the Witches' Gathering" trope: an immortal witch adopts the little one from the supporting cast.

* The witch in this story can do anything and is the one and only existence in this world. If that's not for you, click the X.

* No CP, maybe some ambiguity, with everyone having one-sided feelings.

* Medium-length story.