Chan is just a college student. Just an almost-graduate college student. Unlike his brother, he isn't good at much. What he is good as, is the little habit he picked up when their mom passed away; calling the cancer ward and trying talking to a complete stranger in an attempt to cheer them up. Not once was he connected to the same patient. Until the day that he is. Seungcheol is a patient at the same ward Chan constantly calls. When they're connected a second time, he is the one that does the cheering up and that is how their routine starts. Their phone calls which turn into visits which ultimately turn into adventures. But Seungcheol won't be around forever. And they know that, so they make every day last. When things take a terrible turn, it puts Chan in a position to face things he never thought he would be facing and he needs to make a decision before its too late.