Ryoo is experienced in branding, product development, and communication design, working for various industries such as toiletries, automotive, foods and municipalities at Hakuhodo. Since joining monom in 2015, he is currently working on numerous projects. He is a visiting researcher at the Hakuhodo Institute of Life and Living, and an adjunct lecturer at the Osaka University of Arts; he is also an ordained Shingon Buddhist priest and is the vice priest at home in the temple where his family serves.