Tasha is an exorcist who eradicates yokai using her family's ancestral puppet arts.
Tasha was raised in the village of the House of Jade Mountain, one of the three great exorcist families. Growing up, she looked up to the senior exorcists who protected their village from yokai. Inspired by her seniors, Tasha aspired to become an exorcist herself. To become a full-fledged exorcist though, family tradition dictated that all candidates must pass a succession trial. Determined to succeed, she entered the trial alongside her closest friend, Tilda. Together, they overcame numerous challenges and reached the final trial. But in the end, only Tasha passed, officially earning the title of exorcist.
Upon earning her title, she was presented with the "Mask of Dominion," which allows her to control yokai through puppetry. Though this magic is immensely powerful, it carries a grave risk of slowly corrupting the user's mind. Nonetheless, Tasha's strong and steadfast spirit allows her to wield this power without succumbing to its influence.
Having lived her entire life in the village, Tasha harbored a deep curiosity about the outside world. During an exorcism mission to another region, she encountered the Teatan Rangers, who were rescuing children while wearing masks. Though their flashy costumes and dramatic speeches initially shocked her, seeing the children's admiration for these heroes sparked something within her.
Inspired by the Rangers, Tasha began introducing herself as the "Jade Exorcist" when saving people from yokai attacks. As tales of her heroics spread, more and more people have expressed a desire to become an exorcist like Tasha.