Nia

Nia is a protagonist in Avengers: Endgame. She did not come in contact with the other Avengers until Avengers: Endgame. She usually appears as a Gormotti girl.

Appearance
In her normal form, Nia has grey hair, catlike ears, long canine teeth, and white tattoos on her face. She wears a yellow jumpsuit with white armor in several places as well.

Story
Nia, Pyra, and several other characters prieviously from other timelines were sucked into the Avengers Universe after Shigaraki attempted to use the Infinity Stones in Avengers: Infinity War. She first appears as an ally to Shulk (who was against the Avengers at the time) in Act I, where she behaves neutrally, not really siding with anyone, until Aqua saves her from Porky Minch, where the Avengers earn her respect. Nia convinces Shulk to rejoin the Avengers afterwards. Being a new member of the team, Nia slowly gets a feel for who she is working with, and becomes a valuable ally. She often comes off as sarcastic and cynical, and is annoyed when Squidward constantly complains about his work problems after all that she had to go through. She is one of the Avengers who is captured by Evil Bowser and taken to Thanos's Sanctuary Ship. In Act III, she fights All for One and many other enemies during the Final Battle. She attends Deku's funeral. She also is shown to have built a friendship with Kumatora by the end of the film.