Ranmaru's Kekkei Genkai

Ranmaru has a kekkei genkai ability similar to the Byakugan. It includes penetrating vision and a unique chakra particle extension. He had the ability to use his vision abilities to penetrate the walls of his small shack and view the outside world and perform Genjutsu that can fool even the Byakugan such as creating illusions with chakra circulatory systems. This ability does not appear to have the range of the Byakugan, but it actually has the ability to counter that Hyuga trait. Like the Sharingan and Byakugan, Ranmaru’s vision is also able to locate and track others by sensing chakra, pick up chakra from long distances and notice changes in an individual's chakra. It is also able to sense how many of them are present.

Ranmaru’s vision also has heightened perception and analytical powers not unlike the Sharingan, meaning Ranmaru can comprehend any details he sees to predict the opponent’s next move, although it is never revealed if it can keep up with high-speed targets as well. This ability contributed mainly to Raiga being so formidable in battle and becoming one of the Seven Swordsmen of the Mist.

Ranmaru's vision grants him a greater ability to see one's life force, even beyond the Hyuga's perception. This allowed him to determine that Raiga, who had recently fallen in battle, was still alive. This was something Neji's Byakugan could not sense. When activated, Ranmaru's eyes momentarily glow red. Not much else is known about his bloodline limit as it was only seen in a filler arc.