Shijū Saimon

is a Kidō spell. While both the number and classification of this particular spell is not expressly stated, it most resembles a Bakudō spell.

Description
This barrier is formed by combining Ryubi no Jōmon, Koko no Jōmon, Kikai no Jōmon, and Hoyoku no Jōmon. When the four barriers come together, they create a rectangular prison-like barrier around the opponent.

Incantation
Unknown.

Known Practitioners

 * Hachigen Ushōda