Ikki Tousen Western Wolves is a sequel to the two-episode OVA Ikki Tousen Extravaganza Epoch released in February 2015. How and when it will be distributed is currently unknown.

After discovering the existence of demons in Tokyo, the original Cyborg crew led by Dr. Gilmore find themselves in conflict with Devilman, a strong demon believed to be in league with the war-profiteering terrorist organisation, Black Ghost. Meanwhile, a bigger threat emerges when Dr. Adams, a Black Ghost scientist unleashes his new line of high teen Cyborg models against 009 and his friends.

After facing massive destruction from a devastating war, the city Olympus has become the last stronghold as the center of command for the world. In order to protect the city from a group of terrorists known as the Argonauts, former LAPD SWAT member, Deunan Knotts, runs special military forces consisting of Biroids (cloned humans) and her cyborg partner Brialeos. Knotts must protect the city at all costs but is met with difficulties when Al Ceides, the Argonaut leader thought to be dead, resurfaces and causes problems. (Source: FUNimation)

Subaru Ichinose loves his cockpit as, to him, it's like being in his mother's womb. Whenever he struggles to converse with his fellow pilots, his cockpit is the one place he can be alone. As the ace pilot aboard the Tiramisu, Earth Union's most important battleship, it is his job to defend Mother Earth from the threats that emerge from humanity's extended dominion spreading throughout the vast reaches of the universe. Armed with his personal mecha Durandal, Subaru must fend off encroaching foreign colonies as he struggles to protect his personal sanctuary from rogue fried pork skewers, suffocating backwards shirts, and unsolicited redecorations. In the year Space Age 0156, the fate of humanity rests entirely in his hands. [Written by MAL Rewrite]