There are 3 manga publications that were issued before this anime under the same name (Omishi Magical Theater: Risky Safety), created by Rei Omishi.
Sal Rei | REI | Rei Kawakubo | Rei Ayanami | Rei Omishi | Rei Nakanishi | Rei Mikamoto | Rei Igarashi | Rei | Molins de Rei | Federal University of São João del-Rei |