This special episode is in fact a 15 minutes ad for a laundry liquid by the two main characters of "My School President".

The actors are still super sweet and cute together, but unfortunately I was a tad disappointed by the central plot element. It did not ring true to the personality of both characters in the context of the main story of the drama from which this special episode derivates from. In a nutshell, the plot did not make sense given the relationship between the two main lead at this specific stage of the story.

It is still a fun and cute watch, with some WTF moments that made me smile as the characters were singing and dancing around the laundry machine XD.

I would not recommend this to people, you can skip it as it will not bring anything in terms of story concerning the original drama. Anyway it is short and cute, so you might give it a go if you particularly enjoy this pairing.