Few episodes, really short. And I know that it is just an advertisement but if it was actually plot for the drama - even with the same amount of episodes but just longer - it would work really well. Especially that many people would watch (and still did/do) simply because of Kim Sejeong and Ahn Hyo Seop - and it was good part, it was fun to see them together in some project again - and the only part which saved this, their acting was really good. Part I do not like is Chicco - maybe other actor would work here better.