I will write the cons first since it's the main point of this review.
Cons:
- Too much fan-services: The actor/actress (Ji Chang Wook/Kim Yoo Jung) stares at your eyes literally through your PC/TV/Phone screen
- It's supposed to be a business-related drama, but it's just a gimmick and apparently it's just a setting. The drama doesn't tell you any marketing stuff.
- The cheap CGIs are annoyingly unnecessary.
- The introduction episode doesn't go well. Episode 1 is supposed to show the viewers about the background of the story, characters, and what the drama is about. But, episode 1, unfortunately, became a mere "filler".
- Inconsistent genre. It's like the drama wanted to cover all aspects (action, business, comedy, romance, family).
- The ending is forced to be a happy ending.
- Unresolved conflict: Eun-byul bullying case by her fellow girl group members.
- Problematic story at a glance: It looks like an adult having an affair with a middle-schooler since Saet-Byul hasn't graduated (dropped out) from her school.
- Hang on! You will be pleased with the story after episode 6.

Pros:
- More realistic romance story. (Yo, this is MUCH BETTER than Itaewon Class in term of romance aspect).
- Comedy is there.
- This is family-friendly, no bed-scenes, even you barely find kiss-scenes.
- The family scenes are touching. It might be able to make you teary.
- Love polygonal (more than love triangle), which is good.
- It's Ji Chang Wook and Kim Yoo Jung that you love, lol. But I prefer Han Sun Hwa (Yeon Joo).
- A single thing that motivated me to finish the drama: Dreamcatcher's Yoohyeon is there!