I'd have to agree with the other reviews on this manga. Spectacular world building, and more plot driven than the most in the BL genre. There were no details or panels were a waste to solidify the characterization and plot. As for some warnings, there is suggestive violent themes, even within the first volume, among other heavy subjects. I won't say I really condone this type of content, but I do understand that the author did not glorify the subject matter and used it to drive the plot. So looking to try out this series? I'd say sure! ...If (1) you're okay with darker/graphic themes (2) enjoy the haggard but beautiful older guy takes care of his adopted son (purely platonic) trope (3) bittersweet fantasy romance