What if Rin's Australian Stay-Home parents, had a daughter his age. What if that daughter was as passionate to swimming as he was? It's time for Rin to return back to Iwatobi. A sad day for you and your parents. What if you're given a chance to secretly go back with Rin to surprise him for a month. One last time to swim, one last time to race, one last time to be with him... Once the month is up, are you even ready to leave the one you love behind so soon?