The background is in the distant future after the destruction brought about by Armageddon. The war between the vampires and the humans continue to persist. In order to protect the humans from the vampires, the Vatican has to rely on other allies to counter the situation. The protagonist,  Abel Nightroad, is a traveling priest from the Vatican and a crusnik, a vampire that drinks the blood of vampires. He is a member of the "Ax", a special operations group led by Cardinal Catherina Sforza. He encounters a young girl called Esther, who decides to go with him to Rome and train at the Vatican. Soon after he meets her, the order of Rozencreuz, led by Abel's twin, Cain, tries to continue the war so they can rule the world. It's up to Abel and the AX to try and stop them.

Episode 1 - Flight Night

Episode 2 - Witch Hunt

Episode 3 - The Star of Sorrow I. City of Blood

Episode 4 - The Star of Sorrow II. Hunter's Banquet

Episode 5 - Yesterday, Today and Tomorrow

Episode 6 - Sword Dancer

Episode 7 - Never Land

Episode 8 - Silent Noise

Episode 9 - Overcount I. The Belfry of Downfall

Episode 10 - Overcount II. Lucifer's Choice

Episode 11 - From the Empire

Episode 12 - The Ibelis I. Evening Visitors

Episode 13 - The Ibelis II. Betrayal Blaze

Episode 14 - The Ibelis III. A Mark of Sinner

Episode 15 - The Night Lords I. Return of the Envoy

Episode 16 - The Night Lords II. Twilight of the Capital

Episode 17 - The Night Lords III. The Island of Her Darling Children

Episode 18 - TheThe Night Lords IV. The Palace of Jade

Episode 19 - The Night Lords V. A Start of Pilgrimage

Episode 20 - The Throne of Roses I. Kingdom of the North

Episode 21 - The Throne of Roses II. The Refuge

Episode 22 - The Throne of Roses III. Lord of Abyss

Episode 23 - The Crown of Thorns I. City In the Mist

Episode 24 - The Crown of Thorns II. The Lord of Oath

GONZO

Funimation

Trinity Blood