|Season||Guardian Angels Of The Sky|
|First Appearance||Of The Stars Episode 02
Rosa is a mascot from the Guardian Angels Of The Sky series. Rosa is a creature from Skyriver. She is Rikka's transformation partner. She ends her sentences with "~awa". Rosa gives Rikka the power to transform into the Guardian Angel of love. She has a Rosa mark on her forehead. The mark looks like a heart.
- Momozaki Rikka: Rikka is Rosa's partner, whose she lend the powers of love.
- Ione: Ione and Rosa have been friends since their childhood and even became guardians of the rainbow together. They usually do everything together and have a hard time getting used to being separated.
- The word Rosa means "pink" in many languages. The color pink is often associated with charm, sweetness, the romantic.