This review is based solely on the drama, as I have not read the manga or seen the anime (but I might just do that now).

LIKES:
Acting:
The chemistry between the male leads was great. You could also really feel the anguish of Onoe, when he felt hurt by Kaburagi. Even the supporting characters were well done.
Location shots were all well chosen.
Production:
Considering how short the episodes were and that the number of them were also limited, they got the story of each mission completed. Also the attraction between Onoe and Kaburagi was also finalized.
Writing:
The storyline was interesting, but needed more episodes.
Music: was okay, didn’t really notice it. It never overpowered the voices of the actors/actresses.

DISLIKES:
Production:
Ending was rushed, due to limited time for each episode. That also took away from the development of Kaburagi and Onoe relationship and growth.
Shaky camera syndrome (happened a few times, that it got annoying). For the love of film, please use a film stabilizer!!!
It was so obvious that there was too little funding for this drama.
Writing:
The plot was under developed and felt choppy at times, like there were missing scenes or moments.
Editing/Directing:
Some moments dragged on that could’ve been shorter. Also it’s a boy love drama, but not much kissing and a very limited amount of skinship. Even the relationship of the Male Leads was too short.

OVERALL:
It’s a short, easy watch. I’d recommend it to anyone starting out in the boy love genre or someone looking for a quick BL drama. It’s so short I would watch it again. But because it was so short, I was left wanting more, so I plan on seeing if there is an anime or if the manga has been released in English.