A short episode after the drama concluded.
They show the most important deleted scenes( if you have watched the drama thoroughly you know very well lol) ; The proposal scene, the new year's dinner, interviews with the main lead, some intimate scenes, etc.
The whole episode gives off a good feeling in regard to how the drama ended. The scenes shown are complete scenes without edits and give us insight into the missing pieces we were eagerly waiting to see!

overall, watch it as soon as you finish the whole drama. it's a pleasant watch :)