Likes
1. The first half was so interesting and intriguing. I loved the twists at every last scene. But story got so confusing esp episode 14 that i had to stop watching coz it was a big WTH just happened??
2. The final reveal of who the Teacher was unexpected and i loved the main conflict of killing the son or the mother. It's like chicken and egg dilemma.
3. Minhyuk 🥰🥰🥰 He shined in every scene.
4. I dont know if Park Sun Young is selfish or selfless. I really liked her more than Yoon Tae Yi who is supposed to be a professor but doesn't have a lot of common sense.

Dislikes
1. The unnecessary romantic vibes between Jin Gyeom and Taeyi grossed me out but i kept on watching hoping there is a valid resolution to this. And up until episode 14 i thought the show finally put a stop at it. Had i known this was where the show was really going i would have stopped watching earlier on.
2. The time travel rules kept changing to suit the story when it didn't make sense. I already gave the show a pass on a lot of things. To insist the people are different but later say the memories are merging and theyre the same person is unfair.
3. Again the ending didn't make sense.

Rating: 7.5/10 (i would have given this an 8 despite the flaws until i saw the ending which made zero sense 😵)