I don't know why people are being negative for this drama..But leave everything either it's 'bout webtoon or whatever....The only thing which is important that you'll definitely enjoy watching this drama...This is 'bout the difficulties, traumas, anxiety we face during our 20s. And if you say the storyline is from somewhere else...So what if it is, it's giving good message afterall. And I don't think sharing right and good things with lots of people is wrong thing to do. And also, apart from that the acting casts are very good..You'll not get bored. I am personally saying..I started liking Park ji hoon after watching this drama...And I can't wait to see, coming episodes...It's really hard to wait...I love this drama.