Is “Warawa” (わらわ) a Common First Person Pronoun?
As you may know, there are multiple first person pronouns in Japanese. Women use Watashi (私, わたし) for their first person pronoun, but don’t use “Warawa” in general. Originally, “Warawa” was a word that a woman used to humbly identifies herself. In anime or other fiction, it is used by the queen or princess when they address themselves pompously.
In this image from “Black Bullet”, Speaking of being pompous, you might recall Enju for using “Warawa” in such a way. It is true that this is an old-fashioned word, but that is what makes Enju attractive. You can very well address yourself as “Warawa” in a conversation with very close friends. They will just laugh about it.
In general, you should use “Watashi” instead of “Warawa” like Tina.