X-Men: The Manga is a manga

Manga

Manga is the Japanese word for "comics" and consists of comics and print cartoons . In the West, the term "manga" has been appropriated to refer specifically to comics created in Japan, or by Japanese authors, in the Japanese language and conforming to the style developed in Japan in the late 19th...

 by Bamboo Comics/Marvel Comics Group

Marvel Comics

Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

 inspired by its American counterpart produced for a Japanese audience. Marvel used this title as another attempt to break into the Japanese comic market (others being Spider-Man: The Manga

Spider-Man: The Manga

Spider-Man: The Manga is a Japanese manga illustrated by Ryoichi Ikegami which retold the story of Spider-Man in a Japanese setting. It was originally published in Japan from January 1970 to September 1971 in Monthly Shōnen Magazine....

and Hulk: The Manga

Hulk: The Manga

Hulk: The Manga is a Japanese manga re-telling of The Incredible Hulk within a Japanese setting. It was originally published in Japan in 1970 in Weekly Bokura Magazine and written by Kazuo Koike of Lone Wolf and Cub fame, with art by Yoshihiro Moritou and Kosei Saigou...

in the 1970s). It is in 12 volumes, by Hiroshi Higuchi, Miyako Kojima, Koji Yasue, and others.
The first manga has been translated and is being sold in America.