There is often confusion with chapter numbering in the Baki franchise due to different scanlation groups, fan translations, and the official Netflix/Manga releases. Here is the current status:
Introduction
One of the most notable aspects of Chapter 57 is the introduction of new characters, who are set to play a significant role in the story moving forward. These characters bring with them new abilities and motivations, adding depth and complexity to the narrative. grapara raw the new chapter 57 and guraparatsu new
It seems there might be a slight confusion with the spelling ("grapara" and "guraparatsu"), but you are likely looking for updates on the current series, Baki Rahen (Baki Reincarnation), which is the direct sequel to the original series. Baki Rahen (Baki Reincarnation)