|Affiliation||Shibuya Police Department|
|Relatives|| Chiho Sasaki (Daughter) |
Riho Sasaki (Wife)
|Anime Debut||Episode 1|
|Novel Debut||Volume 1|
|Manga Debut||Volume 1|
|Seiyū|| Haruo Yamagishi (Japanese)|
Sonny Strait (English)
Senichi Sasaki (佐々木 千一) is a police officer working in Japan, and the father of Sadao Maou's teenage co-worker, Chiho Sasaki. He was the first human to encounter the Demon King on Earth, and was subsequently bewitched into revealing key information about the planet and its social system.
When on duty, Senichi wears the standardized police uniform.