Arsene spared only a moment to look at the battle Hato and his friends - watching from a buildings shadow a safe distance away. He itched to jump in and help - but no. He knew himself, knew his limits. There was little Gura could help him do right now beyond sneaking and fast movement, and Arsene himself only possessed a handful of abilities, all of which he doubted were yet up to par in regards to this manner of fight.
Small minions wandering around? Certainly. He absolutely had enough strength to defend himself. But not fight a large creature such as this.
He’d have to ask later what it is - or, was, by then - that’s so different about this Byakhee. And also, Arsene thought, ducking away back into the streets and lanes and alleys of the Mirror-world, it was really just more evidence that he and Gura had to step up their training.
They could not be weak again, the next time something like this happened. They could not.