I personally thought this was great because of the ending was not cliche. It had you guessing who she was gonna end up with. And Rin really went all out for her and was always with her which is why she fell in love. Won seemed to move on in the end and will prolly find his own happiness
Side note: She gives off cool girl vibes and I would love a drama w/ HIY!
Definitely hope to see him in more roles!