Reworked my FFX oc I've had for years and years and years, merging a ton of different concepts for her (many of which I remember but no longer have so aren't shown) into one outfit to span both games and pre-FFX.
Bio: her name is Chiru which (per Google) is Okinawan for crane and Japanese for to fall or scatter(like petals or leaves).
She was a Warrior Monk who secretly studied summoning under Braska and served as another Guardian. They were planning on doing a secret double Summoner pilgrimage, to wombo combo Sin in hopes that it wouldn't come back. But when they finally realize the true cost , Braska doesn't allow it, sensing she was too scarred by the revelation and had lost her nerve. He knew she wouldn't be able to go through with having Auron, who she loved, be her Final Aeon.
Afterward she and Auron confront Yunalesca, Auron is mortally wounded and she's unable to heal him because she's also on the verge of death. She collapses alongside him at the foot of Gagazet and is functionally comatose. Unconscious and barely alive she doesn't trigger Sin's kill programming, so he's able to bring her along to Dream Zanarkand.
After an arduous recovery, she spends the ten years there helping look after Tidus and suffers from immense guilt over being the only real survivor of her friends. She later spends FFX knowing that this pilgrimage will finally take away the last of them, and she'll, as she believes, deservedly be alone for good.
She is originally self assured and teasing, Rinoa-esque, and hyper competent, but the events of Braska’s pilgrimage break her. Her confidence proves to have been ignorance. Her measure taken and found lacking. But just like Auron, her oaths to Braska and Jecht mean something even if she believes she is unworthy of them and carries on regardless. She becomes reserved, calm, kind but profoundly mournful, and underestimates her capacity to do and be good.
Many years after the events of FFX-2, when she is sure Yuna and Tidus no longer need her, she finds purpose in using the skills Braska taught her to Send the wayward spirits still wandering Zanarkand. By the end of her life the city is absent any shades or fiends and the ruins lie silent.
Weapon: She was a ‘red mage’. The orbs hovering around her sword change size based on which swappable ‘strike’ ability she’s using and each attack is followed by an -a or lower spell of the same element. Her canon weapon would have the default ice, water, thunder, fire but later weapons could have status effects instead.
She once could summon but her trauma has taken that from her. She is however inordinately good at communing with pyreflies and this is very skilled at performing the Sending.