Trickee, Prism and Chase followed Misty to the castle where they see her parents 

Princess Misty: hi Mom hi Dad 

King Romeo: hi Misty who are they 

Princess Misty: this is Trickee, Prism and Chase and they say that they are from another world 

King Romeo: and what is their world like

Trickee: we are from a world where almost everyone is a troll 

King Romeo: just like Lydia 

Chase: who

Princess Misty: isn't she that lady who has dark dance magic 

King Romeo: she wasn't always like that a long time ago Lydia was just a troll girl like you three she loved dancing and one day I decided to show her the Danceverse 

Lydia: whoa what is this place 😮 

Prince Romeo: this is the Danceverse 

Lydia: what are you 

Prince Romeo: I'm a human and so are you 

Lydia: a human 🤨 I'm a troll 

Prince Romeo: *shows Lydia's reflection*

Lydia: whoa 😮 

Prince Romeo: yes in this world everyone is a human and has dance powers

Lydia: cool

https://youtu.be/MJY_e0TRSVg

King Romeo: and we fell in love and Lydia decided to stay but then one day we broke up and she studied dark dance magic 

Prism: I hope our friends are ok

King Romeo: I can help 

Then he opened up some portals and they found everyone except for Poppy and Blossom with Branch being worried about his girlfriend and his sister