Haruka Nogizaka’s Secret: Finale S01

In this part, Haruki Nogizaka and Sota Miysoshi go to school on a rainy day and, while walking, they encounter a mysterious girl who tells them that she is an agent and must protect them. Then, they go to school and are in class. However, another mysterious girl named Miyuki, who is also an agent, attacks them and takes them to a secret location. There, they reach a secret room and Miyuki tells them that they must stay in this secret room until the danger passes. Haruki and Sota wait and finally, they go outside and see Miyuki fighting an unknown person. Haruki and Sota come to Miyuki's aid and they manage to defeat the unknown person. In the end, Haruki and Sota go to school and go home together.