It’s the last semester of high school and graduation is finally in sight for Haruto Soma and Mio Natsume. All they have to do now is keep studying and avoid any major drama until they get their diplomas. Unfortunately, that plan is completely derailed by the reappearance of their mutual friend Eita Izumi, who moved away four years ago and has suddenly transferred back. Now things are a bit awkward for all three. They’re not the same people they were in middle school, and reconnecting will mean addressing old issues and unresolved feelings. It won’t be easy; it could be painful. And the results will change not only their futures, but those of their fellow students, as fate proves that it can alter the course of a lifetime in a single instant in JUST BECAUSE!