What a weird anime this is…
There isn’t a very much fanservice in episodes 1-4. We mostly get to see a busty cow girl. In all honesty though, there isn’t very much fanservice in episode 5 either. Just a little bit of a tease :^).
Episode 5 is where it got kind of amusing. There’s even some talk of removing censorship in BDs!… Oh wait. That was a joke…
You can watch that excerpt here: