Bro With B Upd | Spyfam Hannah Hays Stealthy Step

First, I need to confirm if there's an official character named Hannah Hays in Spy x Family. A quick search in the series' official sources doesn't show her. So, she's probably from a fan work. "Stealthy Step" might be a reference to Yor's ability, or another character's skill. Wait, in the story, there's a character who has stealth and step-related abilities—maybe a fan-created OC (original character) or a crossover.