cosMo@Bousou-P (cosMo@暴走P ), who is also known as Kuroneko Antique (黒猫アンティーク), is a popular composer. He is known for creating incredibly high-speed songs with the tempo that exceed 200 beats per minute, and is most popular for his "Infinity" series and his "Bousou" series. Most of the lyrics appearing in the series are the strange, irrational stories known as "denpa song" (addictive songs with weird and incoherent lyrics) in Japan. He has received the "High-Speed Development Miku Master" title on Niconico Video.