I didn't see the chinese version so i won't be able de compare.

This drama is alright for a love triangle drama. Not extraordinary but not bad either.
I would say the overall result a pass.

I liked the short format. But i might have been a disavantage.
Some characteres are underdevelopped . For example, elements are introduced to explain a bit a of the ML's back story but they are not used. As if the director cut those part due to a lack of time.
I suppose that the FL should funny , clumsy and adorable. Well i only remember her as havinga two-emotion: cringy - overly excited.

I enjoyed that the story didn't focus just on their high school year. However i feel that more time could have been spend on their "adulthood". Once again the story was rush.

As the story shows the character aging, the castings is really important. Yet i felt that the FL actress was too hold to make me believe she was a highschooler.