–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 to Tatsuya Kuruma about his goals in Suzunari First.
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.