|“||My goal is to popularize a method to mass-produce Perfect All-Rounders through theory. A method different from Kō's. Once my goals are accomplished, I'll go back to driving theories into Kō.||”|
Tetsuji Arafune (荒船 哲次 Arafune Tetsuji?) is a character in the manga and anime series World Trigger. He's a Sniper and and also the captain of Arafune Unit. His goal is to be a perfect all-rounder, like Reiji Kizaki.
Arafune is a somewhat tall young adult with messy chin-lenght hair.
When in Trigger Mode, like the rest of his unit, he wears a black jacket with blue-gray-colored stripes on the tips, over the sleeves and around the collar, with matching black pants. He also wears a black cap with a blue-gray ab. His Unit's emblem is located on his left chest.
- (About his goals) "My goal is to popularize a method to mass-produce Perfect All-Rounders through theory. A method different from Kō's. Once my goals are accomplished, I'll go back to driving theories into Kō." 
- (To Yūma Kuga) "What a brash rookie. I'll cut you in half" 
- He likes okonomiyaki (a type of Japanese pancake), cold tofu, action movies, and tea.
- According to his profile under the cover, his weaknesses are his inability to swim and his fear of dogs.
- The reason behind Arafune's fear of dogs is because he was bitten by a small dog on his right butt cheek for no reason when he was young, leaving a scar that still remains even now.
- His voice actor, Eiji Takemoto, also voices Katsumi Karasawa.