Both of them meet while buying drinks, and realize that they both noticed each other. There is a flashback (hence the grayscale photos), and both of them were in the exact same scene years ago when they were still in school. Both of them used to notice each other in class as well. Love is in the air.
The story should be nice and clear by now isn't it? A girl graduates from school and is not able to let go of her past in her club activities and hence visits them with gifts to make them happy, and to reminisce. The guy is not able to let go of his past and visits his club to show off. Both of them meet each other and realize they cannot let og of the past and each other as well. I mean, what's so difficult to understand?
Now, remember me saying this PV was clever? It doesn't seem so clever now does it? Well, the PV as I have mentioned a few posts ago, was shot in Ken's alma mater, bringing us back one full circle. Even Ken can't let go of his past and visits his school to do the freaking PV about not being able to let go of one's past.
From a fan's point of view, this PV is generally low on the eyecandy and is not really satisfying. The Hachimitsu fans won't give a damn anyways, unless Ikuta Toma, Hiroki Narimiya and Osamu Mukai are involved. However, just because of the sheer smartness of the concept of the PV, this is still a PV worth the watch. But that's of course my opinion, which all of you know by now, is pretty biased.