I think this drama would have been even better if in episode 15 they had shown a girl tackling a guy to protect him "from guns" in the background of the fireworks scene lol. Like what happened in "Legend of the Blue Sea" . Then it could have somewhat tied the two dramas together in the metaverse. I think it would be awesome to see these awesome dramas to be linked by a single scene like the fireworks scene from "legend of the blue sea" and episode 15 of this drama. It's those little "Easter eggs" that hardcore lovers of kdramas would catch and totally love! Crossovers like that even if it's very small can make a HUGE impact to viewers.
Review of Rooftop Prince
