The ancient demons had been resurrected to awaken an indifferent world.

And she has a new boyfriend who would be perfect if he wasn't possessed by an ancient demon.

Yomi tries to release an ancient immortal demon sealed under Tokyo.

Dante then takes his motorcycle and goes into the demon world to stop an ancient demon.

However, she wants to become truly immortal by summoning an ancient demon called the Triumvirate.

She has haunted her old home for 75 years watching over her brother who was semi-possessed by an ancient demon during the ritual.

With Excalibur, he participated in many adventures, including helping to save London from an ancient demon.

A powerful and ancient high ranking demon whose occupation consists of serving those of the Raenef name.

And why use the name of an ancient Japanese demon?

Four Lords of Darkness, ancient demons who once terrorized the world.