The user can generate a construct in a the shape of a rectangle or a box with numerous capabilities. The user can create physical energy constructs instead material ones.
- Yuta Takizawa (Alive: The Final Evolution)
- Hachigen Ushōda (Bleach)
- Users of the Hazama-Ryu Kekkai technique (Kekkaishi)
- The Box Ghost (Danny Phantom)