The incident of Yuji Itadori cutting off Toge Inumaki’s arm happened during the intense Shibuya Incident arc in “Jujutsu Kaisen.” But it didn’t show on the anime screen. Then how and when did he actually Cut Off Inumaki’s Arm?
The Shibuya Incident is a large-scale battle orchestrated by various curses and curse users to trap and defeat the sorcerers from Jujutsu High. The goal was to seal Satoru Gojo, the strongest jujutsu sorcerer.
During the chaos in Shibuya, Yuji Itadori ingests another of Sukuna’s fingers, which unintentionally awakens Sukuna, the King of Curses. Sukuna takes over Yuji’s body completely, suppressing Yuji’s consciousness.
With Sukuna in control, he begins a devastating rampage through Shibuya. His power is unmatched, and he easily overwhelms any opposition. The sheer destruction caused by Sukuna’s actions highlights his dominance and ruthlessness.
At a crucial moment, when Sukuna and Mahoraga are fighting, sukuna activates his Domain Expansion, Malevolent Shrine. Unlike other Domain Expansions that create a separate space, Malevolent Shrine manifests in the real world, covering a large area with its lethal guaranteed hit effect. This Domain Expansion has a radius of about 200 meters and is known for its ability to slice through anything within its range.
Toge Inumaki, using his Cursed Speech technique, attempts to help evacuate civilians.
When Sukuna uses his Domain Expansion, It’s called Malevolent Shrine, and it’s guaranteed to hit everything around it. Inumaki might get caught in this attack. The slicing effect is so strong and doesn’t care what it hits. Sadly, it cuts right through Inumaki’s arm.
As Sukuna’s Malevolent Shrine activates, Inumaki might finds himself within the range of the devastating attack. The slicing effect of the Domain Expansion is so powerful and indiscriminate that it cuts off Inumaki’s arm. When Yuji regains control of his body, he is horrified and feels guilty for all the destruction and harm caused by Sukuna.
Inumaki’s Arm was cut off, because of Sukuna’s domain expansion during Sukuna and Mahoraga fight. it wasn’t Yuji’s fault. That time Sukuna was controlling his body.