Carlo Rossetti

Dahlia's father. Deceased. He was an excellent magical tool craftsman who produced numerous magical devices and was honored with the title of Baron. However, about a year before the main story begins, he suddenly collapsed in a commercial guild and passed away. He made favors with his business associates to facilitate things for Dahlia should she become involved in the future, including a stipulation that they should remain silent unless it involved her, confident that it would indeed benefit her. Those who owed him were left with complex feelings.

At the end of each volume of the manga, there is a special episode written about him during his lifetime, revealing circumstances Dahlia never knew about.