Chapter 1178 of One Piece delivered a shocking moment that stunned fans worldwide. Why are Monkey D. Luffy and Loki completely immune to Domi Reversi? This terrifying technique from Imu can turn the strongest warriors into “demons” and control their minds. So what keeps these two standing while giants around them fall?
While we await Oda’s official explanation, let’s review the most compelling theories buzzing among fans.
1. Rocks D. Xebec, The benchmark for the unusual

To understand why Luffy and Loki are special, we need a reference point, and no one fits better than Rocks D. Xebec. Rocks is a true monster with supreme Conqueror’s Haki, yet he still fell victim to Domi Reversi.
This proves a harsh truth: raw strength and Haki alone are NOT enough to resist Imu’s technique. So what power do Luffy and Loki possess that even the legendary Rocks lacks?
2. Could it be Devil Fruit power?

Both Luffy and Loki wield Devil Fruit powers. At first glance, it seems their Devil Fruits act as a shield against Imu’s sinister strength. However, Imu’s reaction, “As expected… you two…” hints at something deeper.
Imu is an entity from the Void Century. If it were simply about Devil Fruits, his response would likely be surprise rather than a knowing confirmation. Clearly, another factor convinces Imu that Luffy and Loki won’t be affected.
3. The “Two Souls” theory: When human will and mythology unite

This is currently the most favored theory. Recall chapter 1044, where the Five Elders confirmed, “Zoan Devil Fruits have their own will.” Both Luffy and Loki possess Mythical Zoan-type Devil Fruits.
Luffy not only wields the power of Nika but has awakened and fully merged with the will of the “Sun God.”
Loki’s power is acknowledged by Ragnir (guardian of Niddhoggr), and his ancient Giant bloodline helps him achieve perfect harmony with the entity within.
The “dual system” theory suggests that when Domi Reversi activates, it tries to seize control of the target’s will. For an ordinary person (like Rocks), there is only one “driver,” making them vulnerable. But for Luffy and Loki, Imu faces a dual system: the human will and the Mythical Zoan will intertwined. These two souls resonate and protect each other, rendering Imu’s domination useless.
4. The “Land Spirit” factor: Could it be their homeland?

Another interesting theory involves their birthplace. Rocks was struck down at God Valley, Dorry and Brogy were affected at Elbaph, both places where they have strong ancestral ties. Some suggest Domi Reversi is most potent against “natives.”
However, this theory is quickly dismissed by Loki’s immunity. Despite being the “dragon” of Elbaph, Loki remains completely unaffected. This confirms Imu’s power does not depend on geography but targets the very essence of the soul.
Conclusion: The key to toppling the “Empty Throne”

From these analyses, it’s clear that the awakened dual will from Mythical Zoan Devil Fruits is Imu’s ultimate nemesis. This might explain why Joy Boy in the past was also immune to this power. If this theory holds true, the final great battle will be the stage for those who master perfect fusion with the soul of their Devil Fruit.