In Terra Formars Revenge, the crew members of the Annex I continue to fight against Terraformars—the large humanoid cockroaches that evolved from the ones sent to Mars centuries ago. However, far from discovering the cure for the lethal Alien Engine Virus that has been plaguing Earth, the Annex I team have learned that some squadrons have agendas from their own countries. Now, the squadrons must not only fight against the Terraformars for their survival, but also each other in the never-ending battle for international dominance.

After living in Transylvania for several years, Earl Dracula (as Osamu Tezuka's official website calls him in English) has moved to Japan. In the Nerima Ward of Tokyo, he and his daughter, Chocola, and faithful servant Igor have taken up residence in an old-Western style house. While Chocola attends Junior High School, Earl Dracula is desperate to drink the blood of beautiful virgin women; an appropriate meal for a vampire of his stature. However, each night that Earl Dracula goes out on the prowl he finds himself getting involved in some kind of disturbance which leads to him causing various trouble for the local residents. With nobody in Japan believing in vampires, his very presence causes trouble amongst the people in town.

Three unbroadcasted exclusive Special shorts of Gregory Horror Show (presented as bonus videos on the first series DVDs volumes 1-3 in Japan only), containing stories featuring Gregory himself as a guide, giving his commentary and thoughts on each of the guests in the hotel, also displaying paintings based around the said guests. (Source: Wikipedia)

Kyousuke Date comes home one night and finds his mother dying in a pool of her own blood. In her final moments, she stabs him in the chest. After a swift recovery, Kyousuke searches for answers regarding his mother's motives, but finds more than he bargained for when he is attacked by two rival organizations: the Hospital and the Kirihara Group. Kyousuke is surprised to discover that he has a twin sister named Runa, and both groups try to coerce information out of him about her despite his ignorance to her existence. As their assault continues, Kyousuke soon makes another discovery—he has the ability to transform into a terrifying mutant called SoulTaker. With these newfound powers, Kyousuke resolves to crush both organizations, uncover the truth behind his mother's actions, and protect Runa.