Yui (結) is Cloud Gouger’s ice: instant cages and constructs. The amount varies with the point of the blade. Kou’s water or mist exists to make Mei a wire and Yui a larger freeze. The three-count is weather as a kit, not three personalities.
Ice next to slaughter
Sojo is a fan who spends specialists. Yui is how a street becomes a box. Chihiro inherits residual charges later and spends them at the Rakuzaichi, then the sword is gone. This page is the ice, not the last roar. Official chapters: VIZ / MANGA Plus.
File: Mei, Kou, Cloud Gouger.