You are visiting Seoul, South Korea just to visit the cities famous landmarks and such but you see something strange on the streets it was ice crystals popping out of the ground and who made those it was Kaeya the brother of Diluc who made these ice crystals on the ground and he also made the hot temperature change to a cold one that of winter with his Cryo powers and freezing the water too so maybe you can encounter him but he is also a Giga giant.