Check out the most recent manga Alien Vs Stalker at CoffeeManga. Manga Alien Vs Stalker is constantly updated at CoffeeManga. Don't neglect to review the various other manga updates. A list of manga collections CoffeeManga is in the Manga Checklist menu.
A series where Hinata Taiyou, a stalker, follows around Kinoshita Hazuki...and protects her (and the earth) from aliens. I mean the title says it all, really.