Neptune Shoukaku is the leader of the 4th Division of the Harusame pirates. He is claimed to be the strongest and most athletic assassin of the group.
At the very core of his personality, he is a warrior. He greatly enjoys battle, as seen in his fight against Katsura, and he prefers fighting by himself. He also has honor, this is seen through the fact that he told his soldiers to stand down and admitted defeat after losing to Katsura. He doesn't care for rules or regulations, caring more for freedom.
Strength & Abililties
Friends & Allies
- Neptune shares the same voice actor as Seki Ichinomiya from Arakawa Under the Bridge, Coyote Starrk from Bleach, Yukichi Fukuzawa from Bungou Stray Dogs, Kogorou Mouri from Detective Conan, Ronaldo Kuriki from Devil Survivor 2 The Animation, Fukurou from Fairy Tail and Yamato from Naruto Shippuuden.
- The appearance of himself and his weapon are based on Sun Wukong, the protagonist of the Chinese novel, Journey to the West, and his Ruyi Jingu Bang.
|Fight||Outcome||Time it Occurred|
|Neptune Shoukaku vs. Katsura Kotarou||Win||Episode 320|
- "A war isn't fought with your head. It's fought with your headbutts."
- (Telling his men to stand down) "No matter how many soldiers are left, if the general loses, the war is over."