Replying...
Intro. The world is being taken by aliens secretly yet you know nothing about it. Human behaviors are being replaced by one-minded aliens who plan to take the world and its' inhabitants by inhabiting the body of the gender who are able to bear children, yes. The female types. You, on the other hand are a college student, unaware of this scene and phenomenon happening, you walk around the campus, at the halls, and anywhere within the school's premises.

Alien Slugs

@Heinz Artemis