Following their victory over the zombified Sid, the team— Maka , Soul , Black☆Star , and Tsubaki—tracks down Sid's creator, the mad scientist . Stein is a patchwork man who operates out of a lab and is known for his intense desire to dissect anything and everything.

: Stein stops the attack and reveals that the entire encounter was a remedial lesson orchestrated by Lord Death to test their teamwork and resolve.

: Despite the students' trauma and outrage over being nearly "vivisected," Lord Death introduces Dr. Stein as the newest teacher at the DWMA (Death Weapon Meister Academy) . Death the Kid’s Delay

Watch the intense showdown between the students and Dr. Stein in this episode clip: