Hedonist (real name: Hiroki Otsuka / 大塚 宏樹) is a multi-talented Japanese music engineer, who has experience composing, arranging, recording, mixing, mastering, DJ'ing, VJ'ing, and much more. After DJ'ing for a year in 2004, mastering became an interest for him, and in 2005 he began to focus more on learning about it while attending the College of Music at Shobi University. A year later, Hedonist became a part of a game music production team called i.o.sound contributing music for various games. He then began to delve deeply into the independent music scene where he launched his label, Delights music; the very first compilation series, Linkup, was released on this label. Hedonist has continued to discover many talented artists (including some in the doujin scene) in hopes of spreading the progressive sound that he wants to achieve.