Megumi's trust in Itadori isn't something that just appeared overnight—it's built through a series of intense, life-or-death moments and quiet observations. From the moment they met during the cursed womb incident, Megumi saw how Itadori threw himself into danger to save others, even when he barely understood jujutsu. That reckless selflessness resonated with Megumi, who values strong moral convictions. Itadori’s unwavering determination to protect people, even at his own expense, mirrors the ideals Megumi holds deep down but struggles to openly express. Plus, Itadori’s sheer strength and adaptability in battles—like when he instinctively grasped cursed energy or fought alongside Megumi against special-grade curses—proved he wasn’t just some naive rookie.
What really cements the trust, though, is Itadori’s emotional honesty. Megumi, who’s usually reserved and analytical, finds Itadori’s transparency refreshing. There’s no hidden agenda—just pure, sometimes painfully straightforward intentions. When Megumi hesitated to kill the transfigured humans in Shibuya, Itadori didn’t judge; he shared the burden. That kind of solidarity is rare in the jujutsu world, where sorcerers often operate alone. By the time they face Mahito, Megumi isn’t just relying on Itadori’s power—he’s counting on his humanity to anchor them both in the chaos.