Hulk: The Manga is an original Japanese manga story arc of The Incredible Hulk. It was originally published in Japan between 1970 and 1971. It was alternately authored by Yukio Togawa and Kazuo Koike, with art by Kosei Saigo and Yoshihiro Morito
Spider-Man also got this treatment, with the Spider-Man stories (primarily by Ryoichi Ikegami) proving quite popular, leading to many reprints over the years, other attempts were made in the 1990s with X-Men. The Hulk stories were less fortunate, and have never been reprinted or translated since their initial outings. Consequently, very little is known about the series.
Distinctively, these stories were just referred to as Hulk, rather than The Incredible Hulk as with Japanese reprints of Marvel U.S. stories.