The last two panels on the left are quoting Tamai-san, a bousouzoku who's famous on niconico. After Bishamonten, a bousouzoku group in Kawakoshi, was broken up, Tamai-san remade it on his own, becoming leader and sole member. He then appeared in a special report on bousouzoku, which eventually became popular on niconico.
Chapter 4HaterHaterHaterYou wasted my time! Die, shitty manga!!Maffii-kun!!You bastard...Freelance writer or baldy, pick one or the other!!Buku-chan!!You bastard...You guys... don't stop!Yeah, it's just me! But I'm keeping at it!!And for my senpai who got nabbed!I'll also...I'm ready for a fight any time!! Bring it on whenever, asshole!!I'll do my best for them, too!!straightening