I really love this drama. It's heartwarming and fun to watch. I don't know but I really have a thing with seeing two characters with a past and suddenly meeting again and sparkling their feelings which never really ended. I loved each and every character here. Gook Yeon Su was a character I can relate to in some way. She's seen as a strong, nonchalant, person but she's actually in pain and has a lot of sadness inside. Choi Ung on the other hand, was nice to see as he looks clueless, slow-witted, but definitely warm to people around him. I love how their love for each other bloomed after letting out their thoughts and emotions which were once untold. It makes me think that this kind of situation, actually happens in real life where a relationship falls apart because of misunderstanding and not being open to one another. I love how they lowkey care for each other even when they already broke up. I think they were the cutest! Can't get enough of them. The side characters were also fun to watch. Kim Ji Ung was not your toxic second lead who forces his way to the FL's heart. Rather, it was more realistic of them to focus his attention to his current situation; his loneliness and emptiness. I think it was a bit frustrating to watch that almost everyone has a sad story with them, but also, quite interesting and not over done. I think everyone was well written, with depth, interesting, and worth your time. I cried a couple of times and was feeling all emotional because this drama was well done. The reason why I'm not giving it a full rating because I admit, sometimes, I also felt like it was too sad for me as almost every character feels lonely and sad in the drama. But that's it! Setting that aside, I love everything about this drama. The cinematography, OSTs (try not to cry while they play challenge), plot, script, and the characters. It was an overall great watch to me. Might need to rewatch this in the future. Highly recommended.