After reading mixed reviews I decided to give this anime a chance and watch it. At first, it seemed like it had the potential to develop into a cute romance, but unfortunately, with time it just became worse and worse. And no, it's not because of the whole dog thing. Even the pretending boyfriend thing could be developed into something better if the makers of this would know how to make a romance progress organically. Unfortunately, the story now reads something like this:
Protagonist Erika is a shallow girl whose only goal in life is to have friends (doesn't matter if they're fake and she has nothing in common with them) for the sake of the looks. She likes inventing things, including a fake boyfriend. When Sata decides to go along with her lies, she just keeps on pretense. Any normal person at this point would've admitted being an idiot, apologized, and then asked that if he could've pretended to dump her (so that she could've kept the appearances and stop bugging a guy who clearly doesn't want a girlfriend). Instead, pretending to have a love life clearly seems more important to her than anything, and they both keep on the appearances. Sate is being a jerkt to her from time to time, but honestly it could've been way worse. Most of the time he just uses her like some sort of an assistant, so she keeps on fetching things for him. Erika is pretty annoying, especcially when she "falls in love" with him, which happens way, way too soon and for no good reason. Her proclamation of love sounds more like a declaration of war, and then tries to win his affection in the most cringe-worthy ways. She's pretty much thowing herself at him, which is hard to watch. When he doesn't return the feelings, she ackts like a spoild child who can't take no for an answer.
I do admit that I watched only until half of the season, but I simply cannot bear this bad "romance." It's too childish and bad developed for my taste. If you force yourself on a person you shouldn't expect them to want to be closer to you (unless they have issues). This brings out the exact offosite efect. That's clearly something the protagonist can't understand.