Rumi was born in 1984 in Katori City, Chiba. After majoring in the traditions of Japanese culture and performing arts at Chiba University, Rumi graduated in April 2007 and joined Loftwork Inc. In addition to Web marketing and client relations, Rumi was in charge of overseas sales route development for manufacturing companies. From June 2017, Rumi joined Yilu Inc. A fan of Japanese entertainment, Rumi was a member of the rakugo research group. Rumi currently holds rakugo show at cafés and live houses, and even performs on the stage herself.