9.3 (1,600 ratings)
In 1999, Kim Yong (Yeo Jin Goo), a college junior in Mechanical Engineering, yearns for his first love Seo Han Sol (Kim Hye Yoon) after returning from military service. Through a mysterious ham radio, he unexpectedly connects with Kim Mu Nee (Cho Yi Hyun), a sociology student from 2022. Despite the 23-year time difference, they begin communicating in real-time, sharing their personal struggles and love lives. As they grow closer, they develop a deep connection that transcends time, becoming unexpected soulmates. Their unique relationship raises the question: Will they ever find a way to truly meet? This is a remake of a 2000 South Korean movie, "Ditto" is a 2022 South Korean science fiction film directed by Seo Eun Young.