I have found Auntie in MCLAL, episode 4. You can find her in the art building after you have talked

I have found Auntie in MCLAL, episode 4. You can find her in the art building after you have talked with Melody and before you get your suitcase out of your room. She will give you Wooly and her part cost 18 AP. Here is her summary:  

You can’t believe it, you see Auntie walking in the art building with Wooly. You ask her if she is taking her out for a walk. Auntie is, Wooly was curious to see the city. Or actually the place where you came from. But this isn’t a place for an alpaca. Why not? Wooly is very polite and likes the city. There were about to have coffee at the cosy bear. They have a lot to do, drinking coffee, visiting the exhibit about Peru, they also have to go compare wool sweaters in that one shop. Auntie asks if you want to go with them. But no, you want her to take Wooly home back immediately. But Auntie has other things to do. So she gives Wooly to you. Auntie talks a few seconds about all the things you two could do. See Drooler, go to your home, have coffee. She will reschedule to see Wooly another time and leaves.