Otsuki Kenji & Kitsutaka Fumihiko - Nippon Hikikomori Kyoukai no Theme (Welcome to the NHK)
Kenji Otsuki & Fumihiko Kitsutaka (OST Wellcome to NHK) - Odoru Akachan Ningen
Kenji Otsuki & Fumihiko Kitsutaka - Odoru Dame Ningen
Kenji Otsuki & Fumihiko Kitsutaka - Nippon Hikikomori Kyoukai no Theme