Omnibus Promotion (株式会社オムニバスプロモーション, Kabushiki Kaisha Omunibasu Puromōshon) is a film and anime sound effects production and distribution company established on 1963-08-01 and located in the San'ei-chō district of Shinjuku, Tokyo, Japan. They also operate under the name Requiem Studio (レクイエムスタジオ, Rekuiemu Sutajio).
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