After the Showers, 2069

It's a never-ending love story that takes place in the future, connecting past and present lives.
The story unfolds as an unfinished love story.
An unfulfilled love in a previous life leads to a dream in a sad reality.
Unfortunately, they are forced into forced labor, and the rain showers come and go again.
The situation repeats itself in the future in the background of the tunnel.
They meet again by chance and reunite to make love
and then ~ again
The reversal that appeared to them
The reversal that appeared to them again is that they are connected with various electrical and electronic devices in a capsule in a spaceship due to a nuclear explosion on Earth.
It's an artificial intelligence that's connected to its brain and shows dreamlike images on a monitor.
There are scientists watching them and the two main characters are probably going to space ?

Ending Title
(Cookie Ending Video) Ending Credits

Zoom in on a mannequin in the window of a department store in the year 2024 ~ Seung-ki and Yeon-ah.
Where is the real reality?