For decades, Krillin has been known as the strongest Earthling in Dragon Ball. However, an old interview with the late creator Akira Toriyama has recently resurfaced, surprising fans. It suggests Krillin might not be human in the way we think. The secret lies in the fact that he actually has no nose and breathes in a completely different way.
In the 1987 publication Dragon Ball: Adventure Special, when asked about Krillin’s facial feature, Toriyama paused before giving a surprising answer: “Hmm… Krillin has a strange physiological trait, he can breathe through his skin.”
The hilarious mishap at the 21st World Martial Arts Tournament

The idea that Krillin might not be an ordinary human actually emerged early on. During his fight against the foul-smelling opponent Bacterian at the 21st World Martial Arts Tournament, Krillin nearly fainted from the disgusting stench of Bacterian’s attacks.
But in the heat of the moment, Goku shouted, “You don’t have a nose to smell that!” Instantly, Krillin snapped out of it, realizing he truly had no nose, and quickly defeated Bacterian to the astonishment of the crowd. This moment was originally meant as comic relief, but Toriyama’s “breathing through skin” comment gave it an unexpected biological twist.
How powerful would Krillin be if skin-breathing were real?

In biology, skin respiration is usually found in amphibians like frogs or earthworms. If Krillin genuinely had this ability, he would enjoy huge advantages that other fighters could only dream of.
Invincible in toxic environments
Smoke, poisonous gases, or attacks based on smell would be completely ineffective against Krillin. His skin’s oxygen filtration system would help him eliminate harmful substances.
Master of underwater combat
Krillin could fight underwater without needing to surface for air, making him a nightmare in aquatic battles.
Endless stamina
Not having to pause for breath after energy blasts (Ki Blasts) would allow Krillin to maintain a relentless attack pace, closing the power gap with alien races like Saiyans or Namekians.
The ironic truth behind Toriyama’s comment about Krillin

Sadly for fans hoping for a biological power-up, Toriyama’s statement was actually a humorous joke. The long pause before answering and his sarcastic tone made it clear he was just covering for having forgotten to draw Krillin’s nose.
Krillin is not alone in anime. Characters in Shin-chan, K-ON!, and Madoka Magica sometimes also lack noses to simplify the art style. In fact, in many Dragon Ball scenes, Krillin sneezes, pants after exertion, or even smells delicious food.
In conclusion, Krillin remains a true Earthling. The creator simply turned his minimalist drawing style into an accidental, one-of-a-kind superpower.