Secret Shikotsumyaku Technique: Grand Arena of Yomo-tsu-kuni

Muzai combined two of his Secret Shikotsumyaku Technique's to create an ultimate holding Jutsu. By summoning four of his Takamagahara doors and connecting them in a similar fashion to Angry Titan, Muzai can summon a box around himself or his targets. This box is comprised of his bones, jagged, sharp and large, each with the Kanji of his clan. This technique is ideal for keeping areas under his control. He once managed to hold Kirigakure's port ships with this technique. He can also use it on a smaller scale to keep people secluded for training sessions.