Okake ni Natta Jumon wa Genzai Tsukawarete Orimasen

In a modern era where spells have become subscription-based and are easily accessible to anyone, there exists an organization responsible for sealing spells deemed dangerous to the public. Segawa Ryūsei, a member of the Spell Security Coordination Office of the Ministry of Internal Affairs and Communications, is dispatched on a mission to Chiba Prefecture. There, he encounters Nabatame Junmi, a girl with a genius-level talent for spell creation.

(Source: Pocket Magazine, translated)