Keys

あらすじ

After a tragic night, Caine's life is saved by a demonic entity known as a Key, which also grants him supernatural powers. With his normal life behind him, Caine must embrace his new role as a Key Holder. However, the Key within him has a singular goal: to eliminate all other Keys. Caine must learn to control his newfound strength to navigate a hidden world populated by hostile Exorcists and sinister Keys, a network that extends far beyond his hometown of Derry, Northern Ireland.