Kenji Yamazaki (山崎 健二) is a blacksuit part of the team Tonegawa manages in the spin-off series Chuukan Kanriroku Tonegawa.

He is the only member in the group who has had experience working directly under Kazutaka Hyōdō. Due to this, he knows most of his habits. He is one of the more stricter blacksuits part of Tonegawas team.

In addition, he also manages the care staff of Masan.