She is the president of Mobius, the entertainment agency that [LIP×LIP](https://anilist.co/staff/147796/LipxLip) and Full Throttle4 work under. She has a background of working for a major entertainment agency and is known for being a talented producer. Rei was responsible for choosing Aizo and Yujiro at the audition, and had the insight to pair them up despite their clashing personalities.
