Three years ago, a gateway between Earth and the Beyond opened in New York City, trapping both extradimensional creatures and humans within an impermeable bubble. Following the city's restoration, monsters, magic, and madness have become common sights in the area now known as Hellsalem's Lot. Leonardo Watch, a young photographer who unwillingly acquired the "All-seeing Eyes of the Gods" in exchange for his sister's eyesight, arrived in this paranormal city to seek answers regarding the mysterious power he possesses. His life changes drastically when he joins Libra, a secret organization of individuals with supernatural abilities dedicated to maintaining order amidst the everyday chaos of Hellsalem's Lot. However, this is merely the beginning of Leonardo's unexpected journey. Despite the constant threat of otherworldly enemies, he remains determined to uncover the secrets of his power and find a way to restore his sister's eyesight. Kekkai Sensen & Beyond follows Leonardo as he embarks on further crazy adventures with his comrades, fighting to ensure peace and order.