Yuuyu, sometimes known as Yuuyu-P when producing Vocaloid music, is a Japanese producer, musician and lyricist.

Most well-known for his Vocaloid pieces, notably “Deep-Sea Girl” and “Tengaku,” the breadth of Yuuyu’s work has consisted of DnB and breakcore pieces for a smattering of fandoms and communities including Undertale and Yume Nikki.

This more diverse side of Yuuyu became more apparent to his international audience in 2016 with the release of Gjallarhorn, and solidified with his viral chiptune track “Heartbreak Furry Fandom” in 2018.