This drama is like 30% romcom, 20% melo & 50% outlandish school life plot. I liked the cheesy romcom, I accepted the melo, but I absolutely hated the school life part. I consider myself very tolerant, when it comes to kdrama logic, or fiction in general, but this was just really really bad. Starting with the 27 years old guy goes back to school to get revenge, then moving onto the "let's save the school" plot & all the other various events that happen at school, it's just a plain terrible script, or at least it is bad from an adult viewer's perspective. Maybe the target audience is 14-16 years old kids, for them this drama might have been a lot more fun, I don't know. I didn't buy Seho's character development either, it's not believable to me. Some positive points to note are like the chemistry between the main leads, or that the writers didn't make the triangle too annoying, the OST is quite okay, also Boa is like the most beautiful woman I have ever seen.

(I have no problem with the slice of life in a school setting genre in general, this drama specifically is just below average)