The Ikazkan butterfly effect = Khatarait yours? Or was there something else?
Well, there's already a butterfly effect from Alex and Arandor here. Without them, there would be no isekai'd Sonata. Well, definitely not in this form. And without her, no style. Of course, if you dig even deeper, without Livia, Tsukiko, and Ayano there would be no Tiarius, which is why the story went down this path. And Man's sword is exactly the one Crag forged for Sonata. And his loot is from the coven too. And without Alaria (and Carneol, the ancestor of Alsira and Kenshiro), there would be no Aconia, which Man is so obsessed with.