Seoul, a city full of busy lifestyle, there was two lives catching up with every small things that can make them happy until the end. Kim Taehyung, A 20 years old boy with a terminal illness, who will slowly forget his memories. Park Y/n, a 17 years old highschool girl with a terminal cancer, who has barely six months to live. Their paths suddenly crossed with each other on the bridge, where Taehyung found her screaming her lungs out while laughing...