In a future world, the 'Wonderland' service – which uses AI to replicate people who have died – has become widespread. Baili signs up for Wonderland in order to hide her impending death from her young daughter. After an accident leaves her boyfriend Tae-ju in a coma, Jung-in passes the days chatting with an AI-revived version of Tae-ju who has become an astronaut in space. In this way it is possible for people to choose a life free from longing and sadness.

A letter arrives in every house on Sorok Island on the 23rd of November 2005. The letter read the last words of two nurses. "Being old means not being able to work well and saying goodbye..." These women who came to the island in their 20s left just like that... Marianna and Margaret are two angels who took care of leprosy patients for 43 years. We take a look back at these two people's love for 43 years.