Ryouga Hibiki
響 良牙
Ryouga stands out in the crowd due to his regularly rough appearance. He spends much of his time wandering, often depressed over having to spend so much of his time alone in the wilderness, with the slightest rain turning him into a defenceless pig at the mercy of hungry humans or animals. His most notable characteristic is that, like his parents, and even his entire family, he has no sense of direction whatsoever. He is unable to go the right way, often sticking to the letter of any directions given to him, regardless of whether the path eventually turns. He has an inability to understand even the simplest of directions or draw any legible maps, once running the wrong way at the start of a three-legged race.
This is not due to lack of motivation, however. For instance, on the way to a date, he was supposed to follow the edge of a lake, to reach a statue in plain sight directly in front of him. Instead, Ryouga follows a brook and gets lost again. In the anime, Maomolin the bakeneko possesses Ryouga and tries to lead him towards the girl he loves. However, Maomolin had as much trouble navigating as Ryouga himself even though the former was doing the thinking. In real world terms, he would be classified as suffering from autistic limitation or brain damage in this area. It is also possible that his lack of direction might be some form of family curse.
In the anime this condition is worsened by Ryouga's ability to traverse obscene distances in surprisingly little time on foot, although how he does this is unknown. When the two problems are combined, it results in Ryouga having essentially no idea where he is at any given time, which allows him to miss his destinations by insane margins. In one case, he attempted to reach Hokkaido and instead ended up in Hong Kong. Luckily, he carries a backpack, which evidently contains essentials for survival in the wild.
In the manga this is not as heavily implied to be a supernatural talent, at least not beyond his comical tendency to pop up at odd moments. He seems to need much longer travel times, and has not explicitly been seen to swiftly and randomly traverse continents under his own power. However, in his first appearance he quickly overshot Tokyo by 500 miles twice in a row, apparently within the span of one or two days, though no explicit reference was given. Through the aid of the Kinjakan, he also quickly made it all the way from Jusenkyo to Moscow and back while out to get some dumplings in Peking. His map was also once shown to contain a forest, a café, a road with a red car, the Tendo dojo, some African tribesmen, China, and France.