Strongly agree with all of the above ^^^^
Some moments that I felt really highlighted the romance and/or humor in this show;
1. When Eun Ho begins to lower the blinds in Kang Ji Yun's office and she has to send him out (but still thinks he is ridiculously cute). Also the handkiss and the "i'm hungry" tease after riling him up on the balcony. (I usually find that once the yearning is over, the romance feels a bit lackluster- but not here! It just keeps improving and improving. I'm not used to the female lead making the male lead blush, but they did it so so well)
2. The hottest and sweetest scene was of course when Eun Ho stayed over for the first time, after the chairman openly disrespected Ji Yun. The communication between their eyes, the comfort and laughs, yet still a deeper undercurrent of raw desire that comes from truly loving someone.
3. More of a sequence, but Eun Ho going above and beyond to protect his messy boss from bumping into everything (especially when she's looking for a certain file in a backroom and they have that *stare* moment, you can tell they're both attracted to one another without them fully realising it
4. When a drunk Ji Yun crashes into his shoulder, dead asleep, and he can't help but hold her closer and linger for a while as he ponders his own feelings after her drunk semi-confession
5. Byeol and Ji Yun (poorly) cooking together in the kitchen while Eun Ho holds his heart and hopes they don't burn down his kitchen. Byeol and Ji Yun are always a double win, like with the princess party solution or when she learns to read just to prove herself to Ji Yun, or "where will unni be sleeping tonight?" and then deciding that unni needs to sleep in her bed- even singing a lullaby and snuggling
6. The heavy, long and intense stare between them at the office at night, when Ji Yun has distanced herself after her confession and Eun Ho is planning on seeing a movie with writer Su Hyeon. The tension is palpable, he even stands up when her eyes seem to be filled with guarded pain and longing, his eyes reflecting his willingness to be there for her.
7. Their fun and teasing banter, like when they eat super spicy tteokbokki, when she keeps mistaking her car for another one, or when he refers to her as relentless and stubborn to the ceo of career way
8. Jealous Eun Ho and the aftermath is just a treat
There are so many more moments I adore that don't even include our main characters, so overall this show really has set a high new standard for all shows to follow.