Although in no way does the brilliant cinematography of High&Low match the subtle ambiance here in Bad Boys J (and by that I mean, it feels more low-key than H&L. Yet, I do prefer H&L for its production value and music), these shows give off similar vibes. Kiriki reminds me a bit of a mash between Cobra and Yamato (some of the characters remind you of certain people in either show, I'm sure you'd see the connections!). Here's the reason why you'd like both of these series, or one/the other if you've seen them:

*tons of awesome bromance
*great fighting scenes
*great #friendshipgoals (seriously)
*power struggles, and rising to the 'top,' mentalities among rival gangs and people with 'power trips'
*some great life lessons/deeper meanings behind their fighting in certain contexts

Unrelated: BUT they're both about 22 minutes per episode, and it keeps you engaged.

Although these dramas have two VERY different story lines, the main female protagonist in Make a Woman Cry (Deok In) gives off a similar vibe as Yankumi in the Gokusen series. Deok In does her best to protect the young male students from bullies, and goes to far lengths to ensure their safety, even giving them life lessons during the way (plus, she's quite a talented martial artists like Yankumi). Although Yankumi is a teacher and Deok In is in the restaurant business, I felt like the slice of life/serious feel is definitely apparent in these two as they protect those around then, especially in/near a school setting.