Keiichirō Shinozaki (篠崎 桂一郎) one of the main characters in the series. He is the secretary and long-time friend of Madoka.
Keiichiro has black hair and dark gray, nearly black eyes. He wears silver glasses.
Calm no matter what happens, but can be serious when it comes to Madoka. Especially when Madoka is behind on schedule.
Shinozaki (篠崎) Shino (篠) means bamboo grass and Zaki (崎) means small peninsula.
Keiichirō (桂一郎) is a common name for males.
- In the Drama CD, he is voiced by Yoshimasa Hosoya.
- His seiyuu also voiced Hak from Akatsuki no yona, Kureto from Owari No Seraph, Haru from Super Lovers, and Juichi from Yowamushi Pedal, Hakkekkyuu U-1146 from Cells at Work.
- His favourite food is pudding.
- He owns a black cat named Kuromame which was picked up by Madoka. He keeps it a secret from Madoka due to his overly fondness over cats.
- His favorite hobby is photography.
- He has pictures of Madoka dressed as a girl which he uses as a threat to get Madoka working.