Keiichi Oku has been played on NTS shows including LDLDN, with Heat Wave first played on 14 October 2018.

奥慶一 (Keiichi Oku) is a Japanese composer who has worked on the soundtracks for several anime series including Digimon Savers (known as Digimon Data Squad in the US), most of the Ojamajo Doremi seasons, Peacemaker, and Marmalade Boy.