●Story- a time travel romantic comedy where a man from future travels back in time. But then again while returning to future time, the past younger version of himself follows him to future. And that is something quite interesting. Both of them try to dig in to some truths and save their love.it has flaws but still executed nicely with sweet moments with No annoying characters.
●Acting- everyone performance was good making this story worthy of watching. Seo ji hoon as Kang shin woo, younger version was so cute and made the atmosphere more lively. He had chemistry with the doctor while Lee jung shin has chemistry with the student ji-soo
●Music- ost were beautiful, BGM was also nice.
●Rewatch - maybe just the rom-com because most of the time it feels a painful love-story
●Fav scene-Bickering in future while shaving.

▪︎Many reviews said that they were confused with ending so I went a bit slow on last episode to understand it more better. The younger version after returning to his time i.e. 2007, plans his future to not mess with the things for future self, and believes that he is together with ji-soo and all misunderstanding has been cleared. In 2009, He goes to college where ji soo studies but doesnt meet her. 2013, A blind date also they don’t meet, because he still love ji-soo. 2017, he finally meets her where the story has started. Its like one full circle.
Am not very good at explaining but still I tried to explain the ending which is in respects to younger Kang shin woo.
And for clearance he doesn’t travel back in time when he finally is in 2017, the drama ends there itself when he meets jisoo that is the time travelling day.