Fallen Angel (2012)

Similar vibes. Like something is off. similar cinematography.

Zhang Jing Yi is the FL in both. The chemistry is natural. The relationship had depth. However, BEITD does not have a satisfactory ending.

Both of these Japanese dramas are bizarre, twisting, sci-fi shows that center around mysterious hidden memories and a psychotic doctor. You won't be able to foresee the plot's development and conclusion, and once you're there you probably won't understand what happened either.

Both have young adults fighting against some weird mysterious corporation that's into medical experiments.

These dramas really remind me a lot of each other. Since they're both about brothers you can expect bromance and bother conflicts from both of them. These dramas also fall under the mystery and thriller genres, though the mystery in Fallen Angel is supernatural while the mystery in Sirius is more realistic. And they have little to no romantic plot or subplot.

Both of these Japanese shows involve human experimentation and are beautifully heavy on the brotherly bonds.

They are both about traumatized young boys finding brothers to protect and get them through. In RH+, the brothers are adopted and vampires; in Fallen Angel, they are actual kin. But still, the bromance feeling is the same. Both shows are mainly centered around the boys and have supernatural/psychological thriller themes.

Both shows are psychological thrillers where the bad guys want to change a "fallen" Japan by singling out their "chosen ones." Both are more centered upon the mysterious plot than any romantic themes. Part terrorism, part friendship; the stories give a little bit of the same feel. Fallen Angel is shorter though and a little bit less in depth/drawn out.