In general, it's a great love story. The chemistry of the main couple is no joke. I can feel love all in the air when the two are together. And the boy is just so adorable. ^^

However, there are a few things that feel not real in this series. For examples:

First, the female lead seems too talented and confident to exist. How can she just attend a company as an ordinary employee and get promoted so fast to a manager within only 2 years, when she's a single mom and her son even has a heart disease? It means she would have to worry about him, take care of him and stay at the hospital all day every now and then. Of course she can ask her neighbor doctor to take care of him but that's the thing that feels not real. Doctors are busy all day and have no fixed fee time, and as a mom, she would worry a lot about his son when she's sick. Heart disease is definitely not a joke.

Second, the serious heart disease doesn't feel so serious. The male lead can drink some beer, run around all day with the female lead, while running is tiring even for a normal person.

Third, the kids at the kindergarten are so mean to the son of the couple and his teachers did nothing to protect him. When he had a big heart surgery. Instead of cheering him up, the kids called him a monster and bullied him and the teachers just ignored it, and the female lead also did nothing to protect his son. As a mother, the female lead also didn't protect him in some other cases. It's very strange.

Also, the supporting couples feel a bit forced, and I don't feel any chemistry between their characters. One couple is just about physical intimacy, and the other has a better story (the doctor and the ballerina) and quite entertaining, but it still feels a bit forced.

Besides, about the brother of the dead mutual friend of the main couple, he's not a kid anymore, yet immediately wrongly blamed the female lead for his sister's death just by listening to the passengers of the bus who were all traumatized in the accident? And he blamed a passenger instead of the bus driver? Normally people usually blame the bus driver first before everyone else in similar cases.

There are a few more things that are on my nerves but I'll leave it here. And because I love the main couple and the boy is so adorable, I still adore this series a lot. ^^