(Attention: this character is made completely by me, and it's meant to be in Boku No Hero Academia).
Kyarī has an English mother and a Japanese father, in fact for many years she lived in England with her mother and only recently returned to Japan.
Kyarī is 18 years old and she's a third year student at UA, her Quirk is called Couple Dance: depending on which of the 5 dances she performs, she can have different effects on her opponents (breakdance, classical ballett, latin-american, the typical Japanese Mai dance, belly dance).
Kyarī often fails to speak as she doesn't know Japanese perfectly yet.
She is a very sweet and sensitive girl, she takes care of all those who are in trouble regardless of their appearance and ideals (whether they are heroes or villains).
She is shy and somewhat distracted, she always looks clumsy because of her natural awkwardness, a trait that completely disappears when she uses her Quirk. She is also rather naïve and the others take advantage of her easily, anyway it's difficult for her to lose her smile.
She dreams of becoming the first heroine idol in history and she also sings very well.
Her heroine name is Swance.