From Gentosha Comics webpage for Rutile:
Reo to Mabu ~Futari wa Sarazanmai~ by Ikunirapper and Misaki Saito (character drafts by Migi)
Police box officers Reo and Mabu. What is the sweet incident that these two who protect the peace of the city encounter!? The heartwarming spin-off that ties in with the latest TV-anime by the notable director Kunihiko Ikuhara starts its serialization!