After losing all hope to live, Jeong Hee-wan unexpectedly reunites with her first love, Kim Ram-woo, who is now a grim reaper, opening a new chapter in her life.
Although she wastes most of her week, Hee-wan still has one more day to say goodbye to the world. She prepares gifts for Hee-ju and her father. With Ram-woo, Hee-wan wants to go on a typical, predictable date with him. Meanwhile, Hee-wan keeps getting calls from Yeong-hyeon.