Ban Hani (Choi Kang Hee) , a single 37-year-old lives her timid life day by day, until one day, she met her spunky 17-year-old self. This 17-year-old Hani is nothing like her now, she’s obnoxious and optimistic, while her current self is passive and worn-down with life. How come they're so different despite being the same person? Is there a guilt that Hani carries in her adult life?

It's always interesting to see opposite personalities interacting on-screen. I like the idea of the major contrast between Hani's past self and current self and they were a great match on-screen. I enjoyed the hijinks, comedy and the high energy cast performance a lot in the beginning, but started losing excitement when it starts fleshing out on the trauma. Somehow it didn't feel as emotional and deep, which maybe due to it stays trying to be silly and over the top. I've seen few dramas that handle this emotional / funny tone very well, but here it didn't feel fit together in my opinion. The male lead storyline was a mess although Kim Young Kwang acted very well. I think the banter between him and his dad was better than the romance. I don't think they need the romance in this story, it has enough plotline to focus on. Overall, it was just ok, I had fun at first, but got bored as it ends.