This is probably one of the easisest History 2 serie's short drama, to watch.
The plot isn't difficult and is easy to follow, though at first you do might want to kick the scenarist, for making it a bit of a suspense to wait for the romance parts. But because it's so easy in the plot development and the seeds of main pair's romantic involvement come on with not too much trouble, and enough for viewer to squirm behind the screen a little, I can pardon the scenarist. Waiting for the next ep is quite suspensful, that's why I can say that the scenarists made the plot pretty well and producers and actors did justice on bringing it on the screen. By the way, I do have to give justice to the actors. Their easy accountanance on the screen with each other made the plot so much more enjoyable. I really like their chemestry. The plot romance was a little underrated, but still, better that, than being sleezy or worse, played by an awkward actors
Usually, honestly liking good BL drama, but really harsh in giving praises, then this got some high points from me.
I would say that History short dramas:
The suspense sequence for me:
History 2
1. HIStory2: Right or Wrong
2. HIStory2: Boundary Crossing

History
1. HIStory: Obsessed
2. HIStory: Stay Away From Me
3. HIStory: My Hero