The background is Hiroyuki, a high schooler whos just started living alone, finds Milky Way, a demon, inside his house. She asks him to become his servant and, out of a desire to not be lonely he agrees. This should be the start of an interesting plot that explores the unique servant-master relation between Hiroyuki and Milky. Instead, this relation is forgotten within two chapters and only brought back as a convenient plot point. Although, calling anything in this story as "plot" is being generous.
Plot is non-existent. No character develops in way way throughout the manga. There is no underlying problem throughout the series. Even the romance and harem aspect is only teased as a problem until the last five or so chapters. Each chapter of slice-of-life develops little off the previous chapter. Any time the story looks like it picks up on plot, the next chapter will ruin that tempo.
Every character is either unlikeable or boring. Hiroyuki is an ass. Milky Way has no personality. Makoto is annoying and forgotten halfway through the story. And so on, there is no character one can genuinely like and root for.
The art is appaling. Few pages have background. Character expressions do not match their faces. Half the time, the emotions shown by characters and their dialogue do not match. This feels like a draft piece rather than a good copy.
The only thing this manga has is that the ending is half-decent. This series is not worth the readers time; it certainly wasn't worth mine.
2/10.
