Kazumi Ida runs with Takeshi's crew and is best known for his wannabe biker persona—he plays up the tough delinquent act to seem superior, though it's mostly just an image. He's got a sister complex that gets played for laughs pretty often.
What's interesting is that Kazumi's actually a magician too, something that came to light after he got exposed to Hotaru's magic. He picked up destruction magic as a result. He's got a distinctive Osaka dialect that makes him stand out, and fans often note it's part of his charm.
Content compiled by AnimeList.moe from publicly available sources.
