I expected something subpar by seeing the MDL ratings. This drama is perfect for viewers as a palate cleanser… if you are not much bothered by office banter and business. I have zero idea about how a cosmetics company works, but seeing a fictionalized portrayal of it through this drama was engaging.

The story as a whole does not belong to the main characters alone. Chae Hyung Seung, a marketting trainee under the guidance of Yoo Song-ah (his sunbae), knows his emotions well: he has a terrible crush on his Sunbae. Her lack of awareness about his feelings doesn't deter him from giving hints nevertheless, but his hopes are dashed after he finds out that the object of his affections already was in a secret relationship with the Branch Manager, Lee Jae Shin. Hope springs eternal when he discovers that the BM had a skeleton in his closet too: he was engaged to Hyo Joon, the granddaughter of the company's chairman. With the help of his sister, Chae Ji Seung, who makes wedding dresses, he forces Song-ah to witness her partner's back stabbing at Ji Seung's store.
A broken Song-ah is desperate to break off her sincere emotions, and Hyung Seung decides to veer fate in his favour, despite the endeavours he would have to go through, both personally and officially.

I was slightly creeped out by how absolutely persistent Hyung Seung was in chasing his Sunbae. (I'll just use that term.) I did find his feelings to protect her quite sincere, despite how trenchant he sounded while warning her against pursuing Jae Shin. He slowly grew out of it once he knew his feelings were out in the open. While he was a more lighter character, both his sisters stories are explored just as thoroughly as his. His second Noona and her 7 year old daughter were some of the scene stealers.

It was suprising to see Hyung Seung's entire family in the spotlight, which was why I decided to title my review as mentioned.

Song-ah aka Sunbae had a lot going on in her plate. Her repressed emotions got the best of her at times and her crying scenes were heart breaking -- Kudos to Wo Jin Ah for that!
But, I did wish that I got to see some of her mother's point of view. Her slowly growing to learn about Hyung Seung was interesting to watch and I loved how open she was about her thoughts. I found her romance with Hyung Seung quite calm, warm and healing.

Now... Jae Shin was an idiot. As the story progresses, I could see why Sunbae fell for him -- he had the potential to be a male lead, but threw his chance into the trash can right in the very first episode.
Although, I admire his perseverance in the business field, romance wasn't good for him.

The office gang was a surprising highlight of the drama. The rapport and support among it's members were delightful and heartwarming. I adored Lee Jae Woon's comedic moments.

The OST was absolutely beautiful, particularly the BGM at the end of EP1 and the end of EP16.

"She Would Never Know" is the most suitable title if we view it from Hyung Seung's point of view since he is the one who gets the ball rolling -- his Sunbae would suffer utter despair and humiliation if she doesn't know about what was going on behind her back. But, I find the original title more endearing and incites
A sense of curiosity: "Sunbae, Don't Put on That Lipstick".

Well, I discovered why he said that. It was a warm drama and I'm sure that I would probably rewatch it once again when I'm in need of a refreshing change.