The plot centers on , a mechanical engineering student in 1999 , and Kim Mu-nee , a sociology student in 2022 . During a total lunar eclipse, the two inexplicably begin communicating via an old ham radio .
: Their conversations eventually reveal shocking connections between their past and future timelines that impact their life choices. Main Cast Download Ditto aka The Agreement (2022) (Korean...
: At first, they believe they attend the same university at the same time and attempt to meet, only to realize their timelines are 23 years apart. The plot centers on , a mechanical engineering