Well the special is going to have Ng's, BTS, cast interviews and plot holes explanations. Many agree that the live shooting contributed to the whole rushed final episode was, they ran out of time to shoot & edit correctly. As well as, the drama started off with the intention to be Soo Hyun's role driving the whole drama with on Dong Chan helping her out along the way. But due to The love for Dong Chan's character & the actor himself; it shifted to making it the drama more about him. Basically the writer was chartering to the fans wishes that tends to ruin a good drama into a sinking ship. Just like MHIYD. But what's done is done.