Yakoudou Kitan

Tatsuomi Oonogi, who works at the prefectural office, was suddenly transferred to the "Special Measures Office" which handles cases related to mysterious phenomena. As his first task, he begins to search for his predecessor, but is left clueless. In search of answers, he visits a curious antique store and meets Chihaya Sakura, a young man who is missing his right arm. Oonogi, bewildered by his first encounter with a strange phenomenon, and Chihaya, who is gifted with the power to see strange things, team up to fight the monsters that lurk in the city!

(Source: Kadokawa, translated)