User blog comment:Sunako30/ Who do you think is the main antagonist of Owari no seraph/@comment-218.188.223.242-20160122022055

most likely ferid? like, that fox got something up his sleeves, that's for sure. i feel sorry for krul for having that kind of guy under her watch ;w;

i think mahiru/guren will have a major role. i think mahiru could count as a antagonist, because in the LN, the demon inside her have already eroded her to the point where her personality shifts to that of a demon. before mahiru started her experiments, she's just an ordinary girl, until her family sort of forces her to break down and she grew insane while trying to save everyone (including shinoa).

kureto could definitely be an antagonist, like the dense guy who can't see in other ppl's perspectives and believes that he's justice personified or something idk.