Byakko

About
Rengoku was one of Xavier's four apostles, but his true name was '''Rengoku. '''His original race is unknown but he seems to have been Xavier's Apostle since Nighcisa's era.

He's a large man that carries a pistol. His skin is pale, his ears are long, and he has great physical strength. He is the first apostle to rejoin Xavier after the gourd is broken, and leads the ninja group responsible for gathering the remaining gourds. He remains calmed all the times and performs his duty obediently and throughly. He's probably the most loyal and devoted to Xavier of all his Apostles.

In LP0004, he remained sealed in an unknown individual and breaks free soon after the partial revival of Xavier in the 4th Sengoku Era. He is present during the raid on Honnuji Temple and he is killed attempting to defeat Rance while defending Xavier.

His true form, Byakko, appears to be some sort of creature with horns. He has a white fur and fiercly engages against all his enemies frontally using his horns. His fighting power is very high, requiring a high level party of humans to take him down.

Trivia

 * He was the first one of Xavier's group of Apostles to be unsealed, and he was also the only whose vessel is unknown. He's also the first one to die of his group, not counting Toukichirou in the "Kill the Monkey" route.
 * Byakko is the japanese name for the White Tiger, which is one of the Four Symbols of the Chinese constellations.
 * Rengoku written as "煉獄" means Purgatory.