This drama is basically many short stories played by the same 4 actors. Each short story is about one sided love in different situations. Each episode is less than 5 mins long, so there isn't much to it. I recommend watching this if you are looking for a short quick romance drama. I only watched this for Kim Hye Yoon, and skipped over the episodes where she isn't featured. Personally wouldn't watch again. I'd prefer a longer drama with more character development and an actual plot.
The drama features all rookie actors at the time. Everyone did a great job acting, compared to other webdrama rookie actors I've seen.
No OST.
Wouldn't rewatch, and wouldn't watch the other seasons. Not my kind of drama :(