The rose where Princess Rosa "came out" from is named "Queen Rosa", which originated from England. The legend is about an English royal family ages ago. There was a queen who was beautiful as the big, enormous rose so she was called "Queen of Rosa". The queen had a young daughter, who looked beautiful as the queen.
The princess was loved by everyone so she was called "Princess of Rosa". Then one day, the princess got into an accident and was summoned by the God in heavens. The queen cried almost everyday at the place where the princess passed away and there, a single rose bloomed.
In the center of the large-blooming rose, there was a crystal who looked just like the princess.