Sometimes we don't know how much we need a person to be with us until we meet them. The universe works strangely for sure. Maybe for that's why Pham Hanni and Kang Haerin met each other in a very weird way and got close to each other for even a weirder reason which is none other than a flower named lily of valley. But what's exactly waiting for them in future? Will they stay as friends or will become something more? Or will go back being strangers again but this time with memories?