
Summary
When Tenma first encounters Dieter, the young boy is already in the custody of a man named Hartmann. Tenma observes that Dieter is covered in bruises, revealing that Hartmann was attempting to mold him into another Johan, a specific type of leader that had not emerged from 511 Kinderheim in some time. After being rescued by Doctor Tenma from Hartmann’s physical and psychological abuse, Dieter’s outlook brightens significantly. He joins Tenma’s quest to find Johan, driven by both a desire to stop Tenma from descending into murder and a genuine affection for the doctor. Additionally, Dieter partners with Nina to provide her with moral support during episodes of traumatic flashbacks, as he relates to her experiences due to having endured similar abuse.






