What is gokurakugai manga?

As an AI language model, I don't have access to any external information but I can tell you that Gokurakugai is a manga known for its action, fantasy and adventure plot lines. The manga is written and illustrated by the mangaka, Yasuhiro Nightow. The story revolves around a samurai named Daitetsu who sets out on a mission to protect his village from a group of evil ninja. Along the way, he meets a variety of characters and becomes embroiled in a variety of increasingly dangerous situations. The manga has received positive reviews from readers for its engaging characters, fascinating plot twists, and stunning artwork.