This story presents similar to many other stories already told. You have the cookie-cutter cold-on-the-outside lead male with the bubbly, likable female lead. The female lead is likable in that she's a greedy person (her eyes essentially twinkle when she sees money) but she's not a selfish person. She loves her adoptive family and isn't ashamed of her roots (she comes from a performance house). Female lead has an eidetic memory when it comes to painting and therefore is "employed" to draw a treasure that belongs to the male lead's family. Misunderstandings happen (she's suppose to draw arhats but mistakes the words for "naked man" lol) and she ends up lying that she's pregnant with male lead's baby to initially save her own life. As the male lead comes to like her, he uses her pregnancy to get out of his own arranged marriage and even after finding out the truth of her lie, he tells her to continue the charade, partially because of his arranged marriage but mostly because he knows he's come to like her and wants her at his side.

The story itself is simple and honestly, her lie goes on a little too long. They do discuss how they are going to get out of their lie but when the opportunity presents itself, both the male and female lead back out and continue on with the lie. For example, his cousin poisons female lead to have a miscarriage. During this time, male lead could've easily gone along with it and said she miscarried but he instead claims the "baby" wasn't harmed. Likewise, when the female lead saves the male lead's father from assassination, she could've stated she miscarried but due to the parents' grief over thinking they caused their unborn grandchild to die, she continues the lie that she's still pregnant. The simplest solution would've just been to make a real baby...

The cast does such a wonderful job in this drama that it's hard to dislike any of the characters (aside from the crazy maternal cousin). The parents are splendid and for once, not catty, vicious, or arrogant about their status. Despite being a family of higher status, his family; which consists of his parents, younger brother, and 2 paternal uncles, is very loving and comical. Although initially against the couple, his parents change their minds immediately when learning she's pregnant (which made the scene quite comical). His dad is basically a cuddly teddy bear while his mother is a gentle heart behind a fierce face. Not to mention the female lead's mother is just a bucket of fire who's scary protective of her brood of adopted children. Another notable character is the male lead's guard Amao. He's just splendid and full of fun.

The best part of this story is definitely the two leads!! They are ADORABLE together!! It's not just the cute moments (and oh-so many kisses) between them but just the way they are when they are on screen together. I compare them to Ryan Ding and Zhao Lu Si in Romance of the Tiger and Rose. The two leads have a natural gravitation towards each other when in the same frame so it really feels like they are genuinely a couple.
An example is the scene in episode 6 when he introduces her to his family. It happens before they acknowledge they like each other and she's adamant he's a devil and a cruel person but as she nervously approaches his family she goes straight to him, hides behind him, and grabs his sleeve. What's even better is the little subtle detail (the camera does not pan in on this) where, as she's kneeling in front of his family, she's clinging onto the bottom of his robes, in a way signifying that she's feels safer because he's there by her side. There are many examples of this subtlety throughout the drama between the two leads and it makes the story so much more enjoyable.
The "cherry-on-top?": once he figures out he likes her, the male lead does everything he can to protect her and show her he loves her. He's SO SO SO SO sweet to her in every aspect that it's hard not to fall for him as a viewer. The same can be said about her once she confesses her love for him. I do enjoy rewatching their many scenes together because they are so cavity-inducing with their sweetness!!