In order to save The Paradise Island Zoo that has lost all but the female animals, the Director has made it so when night falls, all the animals turn into cute girls! It's up to Taneda to mate with all of them and save the zoo!
I recommend reading it alone because of it's suggestive art but I can tell you that you will be either smiling and giggling happily or beating your schmeat and being hormy or both at the same time if you're that kind of person. MC is an average caring, good caretaker for the animals, he is literally the luckiest guy on earth, like the dude has a harem of zoo animals (technically not furries or anything of the sort because they aren't covered in fur everywhere on their body, more like the opposite). Each chapter focuses on a different animal but mostly all of the time it ends in the same conclusion that you should probably expect from a manga with the tag Borderline H. Although it ended it's a really good story, it's half-wholesome, half-lewd which is honestly the best combination for people who get the doge bat because of their degenerate minds. And no NTR here bois, this is a sacred manga.