Very much in love with her boyfriend, Cha Ra-ri is devastated when she learns that he has unexpectedly passed away. Determined to fulfill every item of their shared bucket list, Ra-ri sets out to do just that. As she begins checking items off their list, she crosses paths with Kang Han-sol, an idol trainee with great potential but terrible stage fright. Brought together by fate, Ra-ri and Han-sol begin completing items on her bucket list together, their time together giving them the strength to hold on, just a while longer.