Tricked into assassinating his own prospective father-in-law, righteous samurai Raizou Kurima is overwhelmed with guilt. In order to reclaim his honor, Raizou swears vengeance on the lord who gave him those misleading orders. In his pursuit, he is aided by self-proclaimed merchant-of-all-trades Yuuen Usui, who is actually one of the Revengers—assassins who seek justice for the wronged and dispense bloody revenge on their behalf. Tragedy seems destined to follow Raizou as he becomes increasingly intertwined with members of the Revengers. As he begins working as a vigilante alongside them, the complicated web between the corrupt Japanese political elite, the unscrupulous Europeans, and the Revengers gradually reveals itself. The more entangled he becomes in these affairs, the more Raizou realizes that justice is as deceptive as the honor that he sought to redeem.

The story is set in autumn 2005, one year after Resident Evil 4 game took place. Due to an as of yet unexplained reason, zombies appear in a United States airport. The release of the zombies leads to danger of an outbreak.

It is the year 2035, a world filled with advanced science and technology, sophisticated computer systems, audio/video multimedia converstions,world government unification, network wars by hackers, and the future world controlled by one huge multinational company. A 14-year old named Kang Maru, a boy with excellent manuevering skills in a RESTOL simulation game, was chosen by GEONOID, a company with the task of protecting the earth against natural calamities, to pilot RESTOL 03, one of the 5 RESTOLs, to rescue people in different calamities. Now, he and his teammates faces different challenges in their duty, including being hacked their space-based rescue station R-SAT.

Stop-motion animation about robots who only say YoYo and the rescue operation needed to help a robot duckling cross a river.