After continually failing to seduce Koushi, Momoko tries to convince him to go on a date with her to the zoo. Koushi initially rejects her, but when she breaks down crying in the classroom, Koushi's classmates end up guilting him into going on a date with her. Momoko goes to a bookstore and decides to make a good lunch for him so that he will shower her with affection, to the point where she ends up having a wet dream in the Inuzuka family's kitchen while Koushi looks on, bewildered.
At the zoo itself, Momoko tries to strike up a conversation and look impressed by all the animals, but Koushi continues burying himself in his book. Later, Koushi eats the lunch that Momoko made for her and says that it isn't bad. Momoko sees various couples walking around the area and asks Koushi outright if they are a couple. He replies that their relationship is more like "that," pointing over to what appears to be another couple. However, the couple walks away and it seems Koushi is pointing to a man walking his dog instead.
Suddenly, all of the animals start stampeding across the field, having been cut free of their cages by a pair of mysterious assassins. One of the assassins then launches a strange potion from her blowgun into a polar bear's mouth, causing it grow stronger, faster, and smarter than normal. Momoko fights it in a heavy battle until she manages to calm the beast.