Manga - Yuuenchi: Baki Gaiden

Overview

The boy asked the man, the man answered....."I've been there, in the Korakuen Arena, fought against Hanayama Kaoru, it was amazing." The boy asked him again but this time a question that terrified him to the core 'Where's the amusement park?" the man had no answer. This is a series of illustrated tales about a dark place inside the world of the Baki series, the so-called "Amusement Park" come and discover by yourself why strong men fear it so much. Take a peek at darkness itself!!!

Source: AniList