A brief conversation between the two childhood friends on White Day unleashes a whole string of memories as the two realise how little they've actually seen of each other ever since Minwoo debuted. He's currently on the plane to Thailand for a Boyfriend performance while she meant to spend White day at home tackling her math homework...but both find themselves recalling the times they spent with each other, the pieces of the past tightly bound by their friendship...and with each memory reca