Happiness to one and all! I send you my love!
*Ribrianne, whose real name is Brianne de Chateau in the anime, is a warrior from Universe 2, and the leader of the Kamikaze Fireballs.
Ribrianne's base form "Brianne" was created for the anime. As such, it does not appear in the manga.
In her anime-only base form, Brianne is a human-like slender young woman with shoulder length green hair with an orange hairband with two pink gems with a white case outlying them on both ends and a pink dress with a white collar. She also wears a white belt, black leggings, and pink high heel shoes.
Upon transforming into Ribrianne, her more powerful alter ego, her physique becomes near-spherically rotund and her skin color turns teal like her teammates Sous Roas and Sanka Coo. In this form, she wears a sleeveless red and green dress with a very thick petticoat and bloomers underneath it, yellow gloves and boots, and a rubber cap with an antenna-like protrusion. In her Super Ribrianne form, a pair of butterfly wings grows on her back. She also becomes almost comically affectionate in her transformed state.
At her core, Brianne is an individual who believes in the absolute power and strength of love, like Heles. She sees love and happiness as the most important emotions and sought to win the Tournament of Power so she could ask the Super Dragon Balls to make her a goddess of love for all universes. Despite this, her initial idea of love is little more than just "love for herself only" and her teammates, demonstrating more care for outer beauty than inner beauty and a generally shallow understanding of the concept. This is seen during her fight with Android 18, as she finds it shocking that someone as ugly as Krillin is married to 18 (though after being eliminated by her and seeing her and Krillin's happy relationship, she wonders if there are more types of love, she was unaware about). In Legends, this belief in "love above all" led to her manipulation by Babidi, who amplified her thoughts and warped her into a love extremist, alienating even her own friends until she was eventually freed.
She also likes to show off, attempting to capture the attention of all the tournament contestants for her team's transformation and being irritated by Android 17 interrupting them (despite hypocritically attempting to do the same to Goku's Spirit Bomb). In the manga, Ribrianne's shallow beliefs are exemplified, as she believes that one is weak and worthless if not beautiful. In a humorous inverse of her anime personality, she finds the bald and noseless Krillin to be the handsome one compared to the gorgeous and shapely Android 18, who she finds ugly in comparison. Despite usually having a calm demeanor and not being totally scared by strong enemies (such as Kale's Legendary Super Saiyan transformation and Jiren's display of power), she is prone to insulting her opponents repeatedly when on the back foot, as well as possessing a low tolerance for insults herself.
However, Brianne does possess respectable traits. Her belief in love reinforces her synergy with and care for the rest of Team Universe 2, especially her fellow Kamikaze Fireballs. She becomes enraged at Android 17 when he eliminates both Kakunsa and Vikal from the tournament with minimal effort and is further angered when 17 & 18 manipulate her into accidentally helping in eliminating Roasie. Despite being saddened by her own elimination, she continued to cheer and support her remaining teammates. Her charisma and efforts were such that she was able to fearlessly and happily unite all of Universe 2 into one last celebration of love before they were erased by Zeno.*