Summary
Keigo Kurusu is a police officer whose professional life is closely tied to his supernatural abilities. His primary tool is the "Investigation" diary, which provides him with details regarding future crimes and activities occurring anywhere within the prefecture where he is assigned. It remains unclear whether the diary can simultaneously record events happening in multiple distinct locations. The diary’s significant drawback is its geographic limitation; it becomes completely ineffective for predicting occurrences outside of his specific patrolling district.
