First off, I know it hasn't been confirmed yet but from the research and videos I have watched and gathered, do you think there is a possibility that Sirius could be Fortuna??? Sirius is absolutely in love with Petelgeuse, all though Fortuna wasn't as crazy in love with him back 100 years before Subaru's arrival she was still in love with him. That's for sure. When Subaru killed Petelgeuse, SIrius felt very angry and upset for sure. Especially when Subaru first meets Sirius, and of course more and more pain for Subaru. Sirius definitely senses The Sloth Witch Factor inside Subaru but knows (unlike shaula) that he isn't Petelgeuse. That's all i'll say, let me know what you think?