Review of Seraph of the End: Battle in Nagoya
Firts, this is not the best anime like the most of the shonen's. It has a different story than another storys of vampires and inusual condiments. You can follow an apocalypsis with vamppires and humans into war and even demoniac possesions with drama and touches of comedy. The good thing here is that you can enjoy the plot and the story line pace even if you don't capture the meaning of each stuff from the manga, by the way, there are some changes from the manga in the animation. I guess all this was because of the fan-service, in fact , I believe thatthe relationship between the two principal characteres is "canon" even so, they don't showed that there is here anything more than an closely "friendship" or "family relationship"- Actually, that was one of the problems in the construction of the principal characters in my opinion and all the main story. There is a kind of complex , better to say, there is an obssesion around the necessity of mantein and protect the link with the family or the people that they considerer important.
At least I enjoyed the two seasons and it wasnt hard ended them fastly, thats one of the reasons because I recomend this anime, just give it a try.