Hiryu no Ken (Japanese: 飛龍の拳 Hiryu no Ken) is a video game series released by Culture Brain. Ryuhi a hot blooded fighter is the leader of the "Dragon Warriors" and an expert with Kung Fu. His home country is China and his fighting style is Kung Fu. Ryuhi is considered to being the main character of the Hiryu No Ken series, due to the fact that he appears in nearly every game of the series and that the storyline of Hiryu No Ken is often focused around him.
The series is known for mixing the fighting genre with the action adventure genre while incorporating rpg like elements.
Source: Wikipedia, "Flying Dragon", available under the CC-BY-SA License.