Masamune saves Aki as she was about to be hit by a car, when the mysterious beautiful girl who was riding in the car comes out and says that she was waiting to see Masamune and hugs him. A few days later, a girl named Fujinomiya Neko transfers into Masamune's class, and Aki's mood has been worse ever since...

Another Masamune appears in front of Aki named Gasou Kanetsugu. Summer break ends and Masamune continues his approach on Aki but he learns that he is Aki’s betrothed. Masamune sees that Aki’s attitude toward Kanetsugu is completely different from how she treats him, so he panics and goes to Yoshino to figure out what to do, but...