The Most Notorious "Talker" Runs the World's Greatest Clan manga volume 5 features story by Jaki with art by Yamorichan.

The war between Noel and the Mafia begins, thanks to the machinations of the mad clown Finocchio. Lacking the skills to represent himself in a duel of honor, crime boss Albert orders Koga to fight in his place, setting in motion Noel and Koga’s long awaited rematch. The two Seekers have come to respect one another, but Koga dare not hold back if he wants to live. If the Mafia doesn’t waste him, that coldhearted handsome devil Noel might! It’s the ultimate warrior versus the most notorious talker in a fight to the death!