For whatever reason K-dramas want to take 20 something chapter mangas/webtoons and cram them into 8, 15 minute episodes.

I think given this trend in these BL K-dramas the cast and crew did just fine. The two leads especially, I didn't have issues with their acting. They did lightyears better than the "Naughty Babe" cast. ?

The Director Who Buys Me Dinner was also a victim of long story crammed into a tiny show, that was not a good experience for me, it made zero sense. It was, quite frankly, a hot mess. Bump Up Business is rushed at worst. The plot made sense. It was a cute and pleasant watch. It was good, sure if it had more of a time slot it could've been great.

I'm not familiar with this K-pop group so I don't have any bias nor did I have any expectations. I think it's worth a watch if you're looking for something bite-sized. It's not riveting or amazing, but it's not bad at all in my opinion.