Legitimately has similar circumstances. An elder brother whose come back to a younger brother, where circumstances past leave something to desire in their relationship. I would highly recommend this to anyone who read Niisan-sama and hoped for a more intimate ending, as this one does take the incest further, without it being rushed. Has the same slow pace as well.
They both had the same feeling. The genre is shounen-ai, this means that there are no sex scenes, both the boys kinda live together, both the mangas are touching and well drawn.
If you like one of them, you must read the other one! :D