Fugen is the newly appointed leader of the 12 Kongrong Mountain Juunisen, despite sharing the same age of 72 with Taikoubou, whom he considers his best friend and sworn soul brother. The straight fishhook Taikoubou uses was a gift from Fugen, given because sennin are not allowed to eat meat. Knowing that Taikoubou fishes merely to think and not to cause suffering to the fish, Fugen presented him with this thoughtful gift. While Taikoubou views Fugen as someone he absolutely cannot allow to die, Fugen sees Taikoubou as the sole reason for his existence.
Fugen stands among the most peace-loving sennin, adhering to the belief that if negotiation fails three times, it becomes impossible to resolve conflict peacefully. This philosophy is mirrored in his fighting style. He will defend himself without retaliating, attempting to persuade his opponent to cease fighting. However, after the third failed attempt at negotiation, he will not hesitate to strike down his adversary.
Fugen's paopei, the globe-shaped Taikyokufuin, is a powerful weapon capable of manipulating atoms. Its versatility stems from Fugen's extensive knowledge of physics and chemistry, enabling him to wield the entire periodic table as a weapon. Additionally, the Taikyokufuin can function as a radar and has pre-programmed instructions that activate if Fugen is separated from it.
Fugen's pupil is Mokutaku, one of Nataku's two brothers.
