Oba

Oba was a Japanese gangster and conman who was friends with another criminal named Mitsugi, he is first introduced killing a stray dog and offering it to Gen and Ryuta for food, however they declined. Later after Kachin's death, Oba finds Gen and Ryuta and proposes a plan to sneak into the American supply base via a cart with a blanket on top, the plan is a succsess and Oba and Mitsugi gets tons of American goods such as milk, but they both run off from the rest of the kids and sell them in the market for profit. When Gen confronts them for lying Mitsugi proceeds to beat up Gen, which angers Ryuta enough to make him run back to the house and retrieve a pistol he has found earlier. He then shoots and kills Oba first, then shoots Mitsugi shortly after, killing them both.