For the first time watching this drama, I stopped at the second episode and didn't want to continue because I felt bored. after this drama was declared over and people praised this drama, I felt confused, what's so special? then I convinced myself to continue watching. then I realized that this drama is really interesting and warm. This drama looks cliche but has special little plots. I like all the characters who have their own strengths and weaknesses, they support each other. The most important thing is the two main characters smart and solve the problem quickly. I regret not watching this drama earlier. I regret not enjoying my youth like they did.