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She is a character exclusive to the game Date a Live: Rinne Utopia and the novel version of the game.
Rinne has short, light pink hair, with part of her hair tied up in a braid. She has light brown eyes and is seen wearing a uniform with a sweater that has the logo of Raizen High School.
In her Spirit form, Rinne's hair length increases to the point where her braids reach a length approaching her legs. Her eyes turn into a more intense pink, almost red color. Her Astral Dress takes on the appearance of a purple clock with golden extensions on her shoulders and hips. The vast majority of her face is covered by a veil. At the top of her head, there is a decorated headdress with a golden emblem at the center.
She has a daughter with Shido and is Rio Sonogami.
She's the younger sister of Tohka and Ren and daughter of Mio Takamiya.