Perfect Preparation Arc

The Perfect Preparation Arc (をむ) is the tenth arc in Gege Akutami's Jujutsu Kaisen. It follows the Tokyo High students as they prepare for the battle royal organized by Pseudo-Geto at the end of the Shibuya Incident.

Contacting Master Tengen
Megumi convinces Yuji to help him combat the Culling Game and rescue his sister Tsumiki.

With Yuta and Choso, Megumi and Yuji return to Jujutsu High to form an unlikely team and contact Master Tengen. They sneak into Tokyo Jujutsu High and team up with Maki and Yuki Tsukumo. With Satoru Gojo sealed and Geto's motives unknown, Yuki believes this is their only chance to contact Tengen in order to get answers.

With Choso's guidance through Tengen's concealing barrier, the group reaches the Tombs of the Star. The main shrine appears to reject them at first, but before everyone leaves, Tengen decides to show themself.

Tengen offers answers to the questions they seek, but only in exchange for two bodyguards. Now that Tengen has evolved, they've become a target for Cursed Spirit Manipulation. The man possessing Geto's body is revealed to be named Kenjaku and he plans to force the evolution of humanity by merging them with Master Tengen. The Culling Game is a ritual to begin the complex merging process

Yuki and Choso willingly volunteer to be Tengen's bodyguards. In exchange, Tengen reveals there is a "back gate" to Prison Realm in his possession. However, the only way they can open it and free Satoru Gojo is using the cursed technique of a Culling Game player named the Angel, Hana Kurusu. The Angel has the power to extinguish cursed techniques and is located in one of the Tokyo colonies, one of ten colonies created by barriers around Japan.

The group discusses the rules of the Culling Game and formulates a plan while taking on their roles. Maki is to return to the Zenin clan and collect cursed tools to fight with. Yuta will enter a colony right away to take part in the Culling Game and gather information. Yuji and Megumi must go recruit Kinji Hakari the suspended third-year student for his strength.