Nothing is known about Jiro's life prior to or as the outbreak began.
At some point in the apocalypse, Jiro somehow came into contact with a group named "the Saviors" which he subsequently joined upon where he was appointed as one of Negan's personal lieutenants.
Jiro aided his group in terrorizing other survivors and communities around the area into subjugating to Negan's will, where their victims would be forced to give half their supplies in exchange for not being murdered.
Jiro is heading to Alexandria in a pick-up truck with Miles, Roman, and a couple of Saviors when he opens fire on Carol's car, shooting out a tire. He demands that she surrender and offers to take her back to Alexandria, taunting her as she begins to break down. When Jiro orders his fellows Saviors to secure her, Carol opens fire on the men but Jiro manages to survive as he hides behind the truck and hears Miles be killed. Carol then orders Jiro to surrender, to which he refuses. He unsheathes his knife to attack Carol but is shot. Shortly after, he is found by Rick and Morgan and is briefly interrogated before being killed.
- Killed By
- Carol Peletier (Caused)
After his fellow Saviors are killed by Carol, Jiro is shot before he can attack her with his knife.
Rick then finds an agonizing Jiro laying down on the ground. Rick interrogates him about her whereabouts, but after he refuses to answer, Rick stabs him in the head.
This list shows the victims Jiro has killed:
- Numerous counts of zombies and unnamed people
- Cholo Moratalla voices Jiro in the Spanish dub.
- Michael Ernst voices Jiro in the German dub.
- Valéry Schatz voices Jiro in the French dub.