Rei Sakigake is the 16-year-old vocalist of the idol-themed diva trio "No Limit," performing within the virtual realm of WIXOSSLAND. Born on May 1st and standing 161 cm tall, she presents a contrasting duality. In her school life, Rei serves as the class representative, perceived by others as a silent and brilliant figure. Yet, this composed exterior conceals an intense passion that ignites during her activities as a diva. In WIXOSSLAND, Rei is renowned for her formidable strength and receives significant acclaim, her dynamic presence in Diva Battles a stark contrast to her everyday persona. These team-based competitions focus on gaining "Selector" fans.

Rei possesses long royal blue hair secured by a white collar with a navy blue ribbon and striking cyan eyes. Her signature diva attire features a medium purple top and matching bottom worn beneath a white skirt held up by a large navy blue ribbon. She wears slate blue sleeves, white gloves with navy blue cuffs, medium purple stockings, and thigh-high white boots.

Alongside teammates Hirana Asu and Akino Onko, Rei competes in the popular Diva Battles, where trios vie to accumulate the highest number of fans. Rei leverages her strategic acumen and fervor for the team's success in these contests.