I've seen a lot of bad reviews saying this series is lacking on story since there was no diabolical other woman/man, death threats, evil Mother in law, etc. but honestly it was refreshing to see the main characters growing and healing together.

From first impressions Young Joon seems to be cold and pompous but you see as the story goes why he became that way. He felt as a kid that he had to hide his trauma from not only a kidnapping but the preceding bullying that was inflicted by his brother that caused him to be kidnapped. It was implied that he was ostracized for being intellectually gifted, so instead of letting others mock him for it, he shrouds himself in a protective façade of being overly pompous. When he starts to relax around Mi So, he becomes more open and protective of her but then when he becomes nervous he will slip back behind the self protective wall of being overly pretentious. I really loved seeing him grow as a partner to her, going from "wont it be great to marry me, an amazing intelligent handsome man" to "I want to marry you, the most amazing beautiful intelligent woman, can I have that honor?"

Also seeing how the brothers guilt over what he did and how it caused him to repress the real memories and how it caused so much animosity between them. Them learning to forgive each other and regain their brotherly love was so nice to see.

Also the side couples, are the cutest. I love the awkwardness and sweet love between them.