I liked the first half of the drama though the premise being not unique was entertaining. I didn't have any expectation of deep dialogues or great production so it never bothered me that when it failed to deliver on that. I felt it was a very character driven drama so my review is based on the characters alone.

The main guys- Korn was the sweetest person ever. Even when he was being treated badly he never misbehaved and called it out in the best way possible. Knock on the other side was a d*ckhead. He had already cheated on his gf and was not man enough to admit. He picked on random girls at a restaurant, kiss one of them and willingly slept with Korn. Later around ep 10 or 11 he initiated the sex with the kiss but then became a full time diva about this is wrong as he has a gf. The guy had no redemption arc. Least they could have shown was him apologizing for his behavior but no that's too much for his self centered ass. He didn't deserve a guy like Korn -_-

The friends circle was the best part of the show. I loved Fai, Farm, Phu and Yihwa was the MVP. Her attitude where she couldn't care less about the romance but anyhow need revenge on the gf was the best. [this is when she was about to expose PP but Korn didn't care as anyway it will not mend his relationship with Knock]. When she said - "Drink while you can because you won't be able to when you are dead" to Phu was wise & still have me laughing. I need that girl's attitude in life.

Villains lacked motivation and it made me think why the girls were so desperate about the guys, The evil acts were so so and a cliché. I think they made the gf a bitch just to excuse Knock's cheating. Bright's character was really pathetic. He was a guy with a bathroom fetish, creeped me out to my core and I want to arggghhhh slap him , no brainer I skipped majority of his scenes. Farm falling for him and what it did to him in the end was realistic.

The teacher-student relationship had some good moments but was not explored properly.

The kisses were good but overall the story made my head ache so bad. Psychopath would a mild term for the gf. Just that the subber's added comments made it fun and bearable. My suggestion don't watch it on YT because there the added commentary is missing. I won't be recommending this series as despite so many good moments it was a headache.