I based Chara off of the scareb that talks to Blue Beetle in Young Justice. I really think that it would fit as this iteration of Chara is partially reformed and wants to protect Frisk and their body.

Everyone had come to talk about what they were going to do about the skeleton. Papyrus had said that he and Sans would take care of it, but Sans said, "no, she doesn't like me." Toriel felt like she wasn't ready to take care of the monster, and Asgore was in an argument with Undyne because they both wanted a "child."

"Oh hello." Mettaton greeted the young skele.

"M-" No, we can let him know about our knowledge, we still look like an infant to them. Chara hissed. "T-tanta!"

"Oh! You're so adorable! Though, I don't know your age. How old are you?"

Judging by our magic, which is what age is based off of, we've got the power of a teen boss monster, but the control of a baby regular monster. Which is also why you can't talk. Chara explained. Just shrug your shoulders. Which, to Chara's surprise Frisk did!

"So you don't know your age? Strange. My boyfriend Papyrus told me about how your parent was Reelagore? You also called your home 'cis.'" Skele-Frisk nodded.

"Sans also told me about some 'Skeleton language?'"

It's true, Chara told them. Younger skeletons know their native tounge at first, then learn other languages based off of the monsters they live around.

"I learned that 'cis' means 'castle.' So, I think I've put the pieces together, though I can't be sure until you soul scan."

"Sul scn?"

"Yes darling Alphys is going to give a Soul Scan to try to find your parents. But I think I know the real reason why. Alphys and I figured it out. Frisk."

Well, looks like the stuck-up superstar actually has a brain instead of some bolts. How much do I- Chara was inturrupted by Skele-Frisk running and hugging Mettaton. "Y-you figured it out!"

"But, we don't know for sure. Even if you were Frisk. We can't know for sure until your soul scan. So I'm going to have to ask you something Frisk would only know. What attack did I use during the commercial break that we went through?"

"You didn't use any attack Mettaton."

"Good girl! But, could we keep this a secret? I've never felt close to you Darling, but maybe this can be our first friendship test!"

"Thanks Metta!"

Mettaton was so caught up in his revelation that he didn't even notice Frisk was speaking in Allspeak.

Knowing that someone believes your story, makes your magic glow a fiery red!

Skeleton Dictionary:

sul=Soul

scn=scan

Okay guys, the next chapter is going to be exploring Frisk's magic…But I have NO IDEA what powers should be unique to her. Please leave some suggestions!