An unlucky guy was kidnapped by the system and traveled through an imaginary dynasty to save the prince.
After the redemption, he was sent back to modern times, but for some reason he was sent back a few days later.
Because time flows at different speeds, several years have passed
Then he was captured by the man who became the king
One pass lasts three years
and then released
The story of starting over
Dear readers, please avoid lightning on your own
Concept: ancient love