Hades

More than half of the EP 6 is shown ML past different stages of his life. The ML news incident with FL , he is even more selfish and he couldn't think about the FL and without telling her he chose to withdraw from news and at that incident FL felt more pitiful inner herself and mostly bad infront of her colleagues.

"Baek Hye Yeon, she is highly speak and doing things doesn't related to that words.
She and Sml incident paparazzi's published the news. However, SML caught in that photo before a mystery man came into her hotel room, her and him conversation different from friends talk. In addition that, bad luck of SML, he caught in the eyes of Paparazzi's and they made him & her news column."

The 24 episodes format is better for this drama. The miniscule draggy for this pace of 30 episodes. The ending not satisfy either, they married alone and the live their marriage video to their friends and family. Moreover, instead of married alone at some mountain better for marry blessings of their family.
ML past dating life kind of showing writer hesitant, but FL past shows her ex boyfriend. It's kinda monotonous from ML character. Writer gives Little important to multi dimensional approach better for characters and not make always 100% perfect character.
Overall, it's good drama and which can watch without plot burden. The thirty episodes format is not suitable for this drama.

I find it that mystery, no cast details about that guy in this drama. He obviously a media person. I think, it's a hook up kind of thing or might be situationship or friends with benefits etc, any kinda newly dervied dating things between that "mystery guy and Hye Yeon".
I cannot expect from Hye Yeon and she also facing work place bullying.

He wasted 8 years of her life, she wanted to marry but he doesn't interst in marriage.
If one party don't believe in marriage and family life, responsibilities, children better for the amicably breakup with that person.
He is selfish and in present also ...

More details of the ML and FL are widened in the EP 5. The SML was finded about FL real personality behind the what he was believing is not true known in the end. However, he doesn't know about her disorder and who is she ???., why is she like that?. The ML 'bye' is kind of bad wish to FL!!.
The Baek Hye Yeon after bullied by her senior announcer, she mentally devastated after that incident and then at hotel she booked separate room for her. A unknown man came to her room, mysterious about SFL, is her relative or friend or .....?

It's good series 👍👍, writer don't drag things and slowly and steadily developed main leads and second couples relationship in a better way. The way writer don't rushed the ending get a proper closure in the end with happy ending.
However, one negative Dan Ho and Mo Eum reunion doesn't show in the end other than they would meet in the south pole.

Happy ending for the couple even though it limited to few minutes in the last scenes. Writer metaphorically used the two children's for FL to understand love and DNA is different from what she believes. The FL mother got redemption arc, that one is predicted in the end. Moreover, the story is average even though concept is good but execution was derailed from the start of the story. The murder plot and SML love triangle is uncessary in the overall story plot. The ML and FL realisation of What is love? Is that writer want show whole plot but he/she included uncertain plot elements towards the drama. Not recommending this drama.

There is no need to rushed ending, drama already destroyed the good dynamics in the early episodes.

Writer craving for happy ending, in preview seems that ML going to some kind of small hospital after coming back from US instead of focusing his father business and FL seeing in the van. The twin brother plot so many uncessary things, even ML and FL relationship kind of bad from the start. SML and SFL might be couple in the end, FL friend and twin brother priest couple. Writer want to happy ending for everyone.
Nothing seems good in this episode other than some meaningless dialogues of main leads and EP 16 has not better even after happy ending.

Last minute uncessary misunderstanding and separation its very bad for the story. They tried to show two leads true love, but their love is true or not? It's doubt as a viewer before finale episode. They have miscommunication and ML didn't attend the wedding of his and Feng Jiu for a good reason. However, a good relationship need respect each other and share sorrows and happy and a proper communication, that's missing between the leads in the end.
The drama doesn't want to drag for 56 episodes, it can before that conclusion like 40 episodes. The writers still believes misunderstandings and miscommunication would better for engage viewers for each episode. But, it's actually excurting the viewers.

A special episode will be perfect for main leads after reunification what happened?, and portray time jump with kid and happily married kind of thing to show the viewers.

WHAT A WONDERFUL JOURNEY.

At least seen a rom-com and completely faithful to that genre. Despite the small flaws it's an excellent show for watch start to finish.

The worst rom-com: Bad memory Eraser and DNA lover recently watched and watching completely unfaithful for rom-com genre these two are just show of love triangle and uncessary drama, unlikable FL's and uncessary SML's unhealthy obsession to Fl.
It's bad to comment about another drama names are in this comment section but have said above two drama check the viewer patience and completely bad example of Rom-com.

I didn't see that detail, EP 4 saw a photo but didn't show clearly her sister face.

It's better time to swap ML's, Kang Ju Yeon is more convincing ML than main ML Hyeon O.
FL older sister Hyeri is missing since her teenage or something. She has a truma since then, and it's converted by now as split personality. The most hidden thing is the last 3 and 4 episodes were hasn't shown the Hyeri picture, only we can assume, they might be a twin.
Moreover, another kiss happened ML...

The last 10 episodes were felt like draggy and clichè breakup between leads. ML revenge plot failed to portray and even romance between the leads very limited exposure. The Empress Dowger promoting FL in each rank was unrealistic and exaggerated, and another Pan Chi character he overly meddling leads couple relationship kind of annoying character. The drama overall good and watchable, but it cannot satisfy after episodes passes it felt flat.
The ML carried most of the show, because of him it's good.

It's all hype and ratings, but in reality is different.

Hypothetically, FL and SML get into realtionship ;she believing the bull shit because of DNA , in future they will breakup . Even honey moon phases over, even people changing different circumstances. She is bad scientist and a character.

Such a bad story, it's a flop even for OTT platforms.

She almost kissed SML, because of flower plot didn't happened that wrecked kiss. Another bad written drama by another writer.
Other than DNA concept nothing exceptional to this drama for watch. Only one thing is certain, the some Korean writers still don't want to change.
They overly relay on only one solution use SML to spice up love between leads. 1 female and 2 male leads, that weird combination can seen the low tier stories.
Rom-com with murder plot, is it real rom-com or third quality duplicate thing?
FL is core level cringey and bad written character. ML has some kind of realisation happened in the ep 13, compared to that FL level going deep her character traits.

Ending didn't convincing enough, S2 goes ending back to one after final scene. S2 ML didn't remember anything from the past and in the end FL lost memories after final that insect kind of thing gone.
Netflix second seasons always destroy continuations and they didn't develope story fully. The story kinda not answering the questions, even though there is action there is need a story. I felt annoyed by ending, thought couple end up together but it's goes back to memory loss and created another plot for S3.
If they had created a movie, that would be better than 7 episodes series.