Blood Blockade Battlefront

🇯🇵血界戦線 · Kekkai Sensen

MangaShounenFinished🇯🇵 First published in 2009ActionComedySupernatural

Yasuhiro Nightow story, art

Three years ago, a gateway between Earth and the Beyond opened over the city of New York. In one terrible night, New York was destroyed and rebuilt, trapping New Yorkers and extra-dimensional creatures alike in an unassailable island, a world all its own hidden in the mist of its physics-defying waterfalls.

Synopsis via AniList