Bikini is the head nun at Hazakura Temple, running the place with a loud, motherly presence that's equal parts nurturing and eccentric. She looks after the acolytes training there and keeps things running day-to-day. She belongs to the Bikini branch of the Fey clan, one of several family lines tasked with protecting the Master of the Kurain Channeling Technique—a responsibility that comes with the territory of her position.
She became notable in legal circles when she was called as the first witness in the trial against Iris, who'd been arrested for Elise Deauxnim's murder. Her testimony in that case made her a key figure in what turned out to be a significant trial.
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