Tamagotchi P's available characters

[tamaluver5eva]

My favorite tamagotchi is Yumecantchi and by a general google search, I realized I can get her on my tamagotchi P's, but I am not sure how. Can someone guide me on how to get Yumecantchi on the P's?

Do I need to download something? Is it on a particular pierce?

Thank you so much!