Kazuki Fuuchouin

From Wikipedia.org

Kazuki is the scion of the noble Fuuchouin family, and his fighting abilities derive from the family school, which emphasizes grace (麗). He is graceful and charming, and is often mistaken for a woman because of his long hair and feminine face. But when angered, his fury is such that his notorious other title is "Prince of Fear". He's also one of the characters who's frequently drawn super deformed, as he's the butt of many gay / woman jokes. It does not help that he sometimes does wear women's clothes in his line of job as an information-seeker, as is shown when he coerces information about the Hall of Hell out of an Ura follower in a bar.

Kazuki is also often depicted as a naive person in terms of his relationships. He trusted his friends even after they betrayed him, leading to him being taken advantages by the likes of Toufuuin Saizou and Toshiki Uryuu. However, it is also his unerring trust that keeps his friends and followers to flock to him. Due to his job as an annaiya or information seeker, Kazuki knows a lot of thing concerning the Infinite Fortress. Due to his origins as the heir to a famous martial arts' school, he also knows the truth about the estrangement between the Miroku clan and Mido Ban, as was shown during the Hot Spring Rest chapters. Kazuki also knows a lot about religions and cults, and undoubtedly is one of the wisest person in the manga.