Ryujin Kiyoshi

Ryujin Kiyoshi (清竜人, Kiyoshi Ryūjin; born 27 May 1989) is a Japanese singer-songwriter. He debuted as a major label artist in 2009, with the single "Morning Sun" and is also known for writing Yui Horie's 2011 single "Immoralist". In 2023, his song "Haruka" was used as an opening theme for the anime Dr. Stone.