When Ruby and Rosa accidentally end up in another dimension after battling Ruby's evil older brother Razith, they realize they're on a whole new Earth..a world without Shadow Demons and Uciine people; only humans and animals...or so they thought.
But as they start getting acquainted to their new life on this Second Earth and this new opportunity of being able to be in a loving relationship without having to hide it from the world like they had to back home, they also have to fight off the evil villains who keep coming through a portal crack in this new dimension while meeting some allies t
Yikes! Starting heavy! O.O lol So as told in the backstory episode, Rosa's family was killed by a Shadow Demon seeking their Ucen Gems for more power when she was a child. Her feelings are pretty deep though because it shows the conflict she probably still has sometimes regarding her relationship with Ruby. Shadow Demons killed her family and yet the irony is that she has fallen in love with one.