To start off, HNI is easily the best manga I've ever read.

Now, it's about Boxing. Alot of people are put off by this almost immediately and it really is a shame. The manga has character development I have yet to see any anime/manga match. The story is always captivating and the emotions of the characters always real. It's also fraught with comedy and has very nice character X character relationships.

I can never really sing its praises enough. SnoopyCool is translating it and the manga is on volume 70+ in Japan. I highly recommend looking for it. If you're really having trouble, I'd be glad to send you some via file transfers of your favorite messenger. Anyway, keep an eye out for it. You won't be sorry.