Though the picture is subject to copyright I (
Ninja Neko) feel it is covered by the U.S. fair use laws because:
it is a low resolution copy of a manga cover.
it does not limit the copyright owners rights to sell the manga series in any way.
it provides visual identification of the main characters of the series.
it provides visual identification of the art style of this series.
there is no free alternative depicting these characters.
Licensing
This image is from a comic strip, webcomic or from the cover or interior of a comic book. The copyright for this image is most likely owned by either the publisher of the comic or the writer(s) and/or artist(s) which produced the comic in question. It is believed that
the use of low-resolution images of the cover of a comic book to illustrate:
the issue of the comic book in question;
the periodical comic book series of which this issue is a part; or
the copyrighted comic book character(s) or group(s) on the cover of the issue in question;
or the use of low-resolution images of a single panel from a comic strip or an interior page of a comic book to illustrate:
the scene or storyline depicted, or
the copyrighted character(s) or group(s) depicted on the excerpted panel in question;
where no free alternative exists or can be created,