Hans is the long-serving butler of the Mölders (or Meredith) household, employed since their time in Germany. His extensive tenure makes him one of the family's most trusted servants. Hans presents a stern, quiet presence, often seeming detached from trivialities, yet possesses an inherently kind nature. He shows particular consideration towards Emma after she joins the estate staff.

Originating from extreme poverty, Hans endured significant hardship through relentless work to attain his position. This shared experience of overcoming poverty fosters a connection and mutual understanding with Emma once they discuss their pasts. Initially, Hans misinterprets Emma's demeanor as animosity, a misconception that dissipates as they interact more. He develops a fondness for her.

The anime significantly expands Hans' role beyond the manga. While the manga only subtly hints at his potential romantic interest in Emma, the anime explicitly positions him as a rival to William Jones for her affections. In a key anime moment, Hans proposes marriage to Emma. This serves dual purposes: offering her an alternative path away from complications with William and revealing his own emotional vulnerability. Following Emma's refusal, Hans accepts her decision without contest and respectfully steps back from his romantic pursuit. His story concludes with no lingering resentment; he remains content in his continued role within the Mölders household.