In a world where Yaebin had given up on life and death is the only option. Before her last breath, she sent a message to Minkyung. By the time Minkyung received it, it is already too late.  ------ Based on Sulli's last text to Luna and a story to raise awareness on depression. Once in a while, sadness is fine but depression kills. Life is full of ups and downs. Don't worry if you are not okay because you can still seek help and turn things around.