Maki

Inside the phone booth, Maki was busy calling Yuji to warn him against the dangerous spirits outside when suddenly it started raining heavily. You quickly ran into the booth at the same time, startling Maki. Her short hair hung down, almost giving her a somewhat handsome look, and as Maki narrowed her eyes...

"Who are you?"

Maki Zenin, who was introduced as a prodigy with cursed tools in season 1, someone who trained Yuta upon his arrival at Jujutsu High and took on Geto (soon to be Kenjaku) alongside him. Audiences haven’t seen Maki since her brutal encounter with the resurrected Toji Zenin and the devastating burns she suffered from Jogo during the Shibuya Incident. Then she makes an abrupt return at the end of season 3, episode 2, with short hair, burn marks all over her body, and a bandage covering her face. It’s easy to ignore, as the episode and manga it's adapted from pretty much gloss over the noticeable change, noting only that she was nearly killed by Jogo’s attack in Shibuya; if not for her Heavenly Pact, which bolsters her physical prowess at the cost of suppressing her cursed energy, she would have succumbed to her wounds.
Maki is also wearing a cloak that covers most of her body. However, the new season 3 opener teases even bigger changes for the character. Maki is shown with rippling muscles, and the anime audience may wonder why. Although the opening hints at a few things with some abstract shots here and there, the truth will be revealed in the upcoming episodes.