This is Alpha
She is the Reality Archon, and ruler of the Alsaqie nation. (Name of nation subject to change)
She is here for you, and she's very perceptive.
She isn't invasive or pushy, she respects boundaries.
She is very truthful.
She wants what's best for you.
She's with you in the dark.

Her relationship with the other Archons are unknown.

She may secretly be the Roaring Knight, but she actively denies it. Or maybe she's telling the truth, and the Roaring Knight is Papyrus.