Sigma is a fan-favorite character, and while the anime cut some of his scenes, he embodies one of Season 4’s big themes: Determination.
Spoilers Ahead For Season 4 of Bungo Stray Dogs.
The Sky Casino Arc of Bungo Stray Dogs probably could have been adapted better and is undoubtedly one of the greatest victims of Season 4’s pacing. However, in spite of that, Sigma, the central figure of the arc, is no less a character worth digging into, even if the anime didn’t let the audience get to know him quite as long before the action started.
Episode 49 introduced audiences to Sigma, the manager of the Sky Casino, which – as the title suggests – is a floating casino outside any nation’s jurisdiction, as well as a member of The Decay of Angels. In Episode 50, the Season 4 finale, titled “SKYFALL,” he pulls out all the stops to prevent The Hunting Dogs and the Agency from halting his plans. But what makes Sigma interesting isn’t just his attractive casino that feels straight out of a 007 film, but rather his background and the things driving him to stand in the way of the protagonists (and antagonists). Notably, it is his past, and the fact that both he and the casino he presides over, have no past to speak of.
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When Sigma is first introduced, the audience is shown what kind of leader he is when the safety and security of his casino are put at risk thanks to the investigation by Tachihara and Teruko. He’s not merely concerned about the casino, but his clients as well, displaying a remarkable recollection of information about them and how best to accommodate their needs.
Just as quickly as the audience is shown this, we are hit with how Sigma reacts to all of this behind closed doors. He’s nervous and nearly cracking under immense pressure, be it his part in Fyodor’s plan or the encroachment of the Agency and the Hunting Dogs.
