Bad company is a prequel to the manga Shonan Junai Gumi, this essentially made the manga read more fascinating. Not to give any spoilers away, the final few missing pieces of the puzzle for Onizuka and Ryuji have been filled. As I already became fond of the characters it was an easy read and character development was not required.
The art style is similar to Shonan Junai Gumi but making them look younger was a bit odd to look at first, but grows on you even if it is only a short read. What can I say to fully appreciate this, I would suggest read Shonan Junai Gumi and then this, it will be more interesting that way.