She is the Stray

As Princesia and the Monarch are training, Principe met up with someone, Penny.

"Penny," Principe called after meeting up with her in a secluded area.

"Yo, how was your day?" Penny asked him.

"I don't need to answer that, I thought you said you will change Heaven after mastering Light bending, you were able to overpower Father, the Guardian Angels, and the Elite Angels combined recently, don't tell me you still couldn't find a way to overthrow Father and everyone," Principe responded, annoyed talking to her.

"But I still couldn't the artifact I have isn't enough to allow me to activate my full potential, I thought you will give me a level 2 artifact after I gave you the True Angel's book, why can't you secure one for me?" Penny asked him, she has a different tone talking to her about this.