Nils Didek Foreigner is Willem's adoptive father and teacher. He found and raised Willem from a young age and taught him the skills needed to be a Quasi-Brave, despite objecting to it at first. Willem doesn't think highly of Nils, but does admit that Nils does have his good qualities from time to time. For example, he learned from Nils about how important it was to treat girls well from him.
Almaria Duffner is a fellow orphan who lives at Gomag Orphanage. She is often described as "the daughter" and considers Willem to be her "Pops." In return, Willem treasures Almaria dearly and always thinks about her first, especially whenever he reminisces about events from 500 years ago. He has never forgotten his promise to her to come back safely and regrets not being able to anymore.
Children of Gomag Orphanage Edit
Love Interests Edit
Chtholly is the first fairy that Willem is shown to meet in the series. Over the course of the series, Willem gradually develops feelings for her, however he wishes others not to know this. It is also shown that Chtholly openly loves him in return.
In Episode 10, Willem asks Chtholly to marry him and she agreed answering with, "I will always stay by your side and make you happy".
Lillia Asplay was a fellow Regal Brave whom Willem was in love with. The two of them first met when they were children and had trained together under the same Master. Willem cared deeply about Lillia's safety and well-being and she in turn returned those feelings. However, due to her own pride and because of her own desire to keep Willem away from danger, she constantly denied these feelings and never confessed them to him. The only time Lillia confessed to them was when she was about to kill Elq with Seniorious, "I'm doing this for one reason... it's for my love." However, Willem didn't hear it and Lillia died never knowing that he loved her.