This appears to be the first chapter of a longer manga, apparently originally a doujinshi (self-published). The 14 year old protagonist, Masaharu, is peacefully minding his own business when a very strange young woman bursts in on him, explains that she is an alien, and starts asking weird questions and making very out-of-date pop-culture references; at first it seems like she may just be nuts but it soon develops that, yes, she really is an alien (and has a taste for ants). Masaharu's sister cheerfully lets alien-girl stay with them, so long as she does all the housework. End of installment.
Artwise, this has the looser and scrawlier style that many artists use for doujinshi, which are usually less polished than their professionally published works. The big problem, however, is the English lettering; the translation is readable, although sometimes clunky, but the font choices and placement of the wording looks embarrassingly amateurish. The text is mostly right-justified, words break exactly where they fit the balloon and not according to syllables; basically it looks like it was done in Microsoft Word by someone with no experience and no familiarity with English-language manga lettering.
The story looks like it may go somewhere engagingly silly, so if the lettering won't drive you nuts it's worth a dollar, and maybe the production values will improve as it goes along. The original Japanese pages are included at the end, which those learning Japanese may find a valuable bonus.