R Sound Design or R for short, formerly usugeP, is a producer, singer-songwriter, instrumentalist, DJ, animation producer, and has also provided various designs as well.
He started music activities under the name usugeP in 2015. However, it was not until July 2016 that he made his first VOCALOID debut work with the song ノウリョウサイ (Nouryousai). Three months later, the independent label R Sound Design was established; his producer name was later unified with the label name on early 2017.
He mainly produces songs using Hatsune Miku, and also does self-covers for his more recently-released one.
His sixth and also most notable work to date, Teikoku Shoujo, became his first work to enter the Hall of Fame. Other notable songs of his include CITY NIGHT WALK and flos.