A Letter From Mars (화성으로 간 사나이) 21 years old

Little Seung-jae stays up all night and writes letters to So-hee, pretending to be her father in Mars. Leaving Seung-jae's innocent heart behind, So-hee leaves for a big city. Both grown up to be adults, Seung-jae is a postman who writes letters to So-hee's grandma - the letters that never came from So-hee. So-hee's heart hardens after hardships in life and she comes back to her hometown and Seung-jae's heart swells up again at seeing her again...

Credits

A Letter From Mars Cast

Name	Character
Kim Hee-seon She was 25, now 47 years old	as So-hee
Shin Ha-kyun He was 28, now 50 years old	as Seung-jae
Kim In-kwon He was 25, now 46 years old	as Ho-gul

A Letter From Mars Crew

Name	Department
Kim Jeong-kwon as Director.	Directing
Jang Jin as Writer. He was 32 (now 53) years old	Writing
Lee Jae-jin as Music. He was 20 (now 41) years old	Sound