Jin is Takaya's faithful right-hand man, and a member of Strega alongside Takaya and Chidori. Jin acts as his tactical adviser and the webmaster of "Revenge Request." He uses hand grenades and other small bombs in battle, and is also a skilled computer hacker. He is "well-known" on the internet, according to Akihiko Sanada. Fuuka Yamagishi in particular recognizes the name Jin from her time online. In the Japanese version, Jin speaks in Kansai-ben dialect, suggesting that he originally hailed from Osaka or any other city in the Kansai area.