Ren is a young woman with long black hair. She has somewhat thin, dark eyes. She also has a noticeably big nose compared to most girls and even guys in the series. When working as an Operator, she wears the standard uniform, a black suit with orange stripes over the arms and over a white polo shirt and no necktie. She is C cup.
Not much is known about her personality as of yet, but she seems like a kind and gentle mature woman.
(To Tōma) "As long as you hit the target, I don't care, Tōma." 
"Ren" (蓮,"Ren"?) means "lotus, water lily, paradise". "Tsukimi" (月見,"Tsukimi"?) means "moon viewing".
She likes traditional Japanese sweets, swimming, and fireworks.
Her Japanese voice actress, Chihiro Ikki, also voices Akane Hiura, while her English voice actress, Maryke Hendrikse, also voices Ai Kitora.