Kekkai Sensen (Blood Blockade Battlefront) is a supernatural action series created by Yasuhiro Nightow, featuring a chaotic, jazz-infused world in a transformed New York City known as Hellsalem's Lot. The story focuses on Leonardo Watch, who possesses the "All-Seeing Eyes," as he navigates the city's paranormal dangers alongside the secret organization Libra. For a detailed breakdown of characters and setting, visit the Kekkai Sensen Wiki . A Review of Blood Blockade Battlefront & Beyond