The show was quite interesting at first, but after the leads got together it became really boring. There was no chemistry between the leads at all, the female lead wasn't suitable for the role, as she's too old making the couple look more like mother and son than lovers who are supposedly close in age. There were too many unrealistic scenes that simply didn't adhere to logic. The only characters i found to be realistic were Bang Su-a and Lee Sun-jae, although the male lead was quite realistic at first, in later episodes he was always somehow changing his attitude and mannerism making him feel way too unrealistic. Su-a and Sun-jae's characters were portrayed so well, Su-a's mental health was also very relatable since it shows how stressful academic rivalry is. Overall the show was boring and felt like a total waste of time.