Not ur typical time travel drama. Writer did something different here. Future Kang Shin Woo travels past and met his 1st love anddd the past Kang Shin Woo and the past Kang Shin Woo travels future with the future himself. I like the past Shin Woo in the future meeting 28 years old Ji Soo. Watching episode by episode, it made me sad and had a thought that it'll have a sad ending but I was wrong, the end of the story made me smile and the last words on the drama left a special place in my heart. " Even when our story is starting over, my only answer is only you."