For centuries, the Ten Shadows Technique carried a dark reputation within the Zen'in clan. Sorcerers inherited ten distinct familiars, each requiring individual subjugation before entering the summoner's active arsenal. Mahoraga stood as the tenth and final shadow, an undefeated hurdle that slaughtered every head of the clan who attempted the subjugation ritual. When Megumi Fushiguro found himself cornered during the Shibuya Incident by the assassin Haruta Shigemo, he exploited a critical technicality in the ritual rules.
By summoning Mahoraga with multiple participants, Megumi invalidated the subjugation process, triggering a suicide pact where the divine general targeted both sorcerers until both were dead. Megumi fell into suspended animation, forcing Ryomen Sukuna to intervene to preserve the boy's life for his own clandestine ambitions. Sukuna dismantled the beast through raw offensive overkill, witnessing firsthand how the wheel operated. When Sukuna subsequently commandeered Megumi’s body, he transformed the shikigami from an uncontrollable emergency flare into jujutsu history’s most terrifying offensive tool.
| Encounter & Era | Summoner / Master | Key Phenomena Targeted | Final Tactical Outcome |
|---|---|---|---|
| Edo Period Duel | Unidentified Zen'in Clan Head | Six Eyes & Limitless | Mutual destruction; both clan heads perished in ritual combat. |
| Shibuya Incident (Nov 2018) | Megumi Fushiguro (Untamed) | Dismantle & Cleave slashing attacks | Destroyed by Sukuna's thermobaric Flame Arrow (Fūga). |
| Shinjuku Showdown (Dec 2018) | Ryomen Sukuna (Tamed & Controlled) | Unlimited Void, Cursed Technique Lapse: Blue, Reversal: Red | Annihilated by an unrestricted Hollow Purple after unlocking the World Slash blueprint. |
