It is the sequel of Versus Revolution, continuing the chain of events after the battle between the Invaders and Revolutionary. It is also the last season and conclusion of the Versus saga in the anime The 'V' mark that was once on Katta Kirifuda's forehead hides a mysterious force. However, the power was sealed off. Even though the impact of removing the seal does not do much, but Hamukatsu starts to talk! Plus more hamsters that are like Hamukatsu starts to appear! They were then told about a secret organization, the "Rare Killers", with the members being transfer students of the school! What is the mystery of the hamsters like Hamukatsu and who exactly are the Rare Killers? The final battle is about to start! (Source: Duel Masters Wikia)

Shobu has returned after his 3 years training with all his friends in Battle Arena tournament. However, Shobu encounters a new enemy Zakira and his followers, the Fua Duelists. Zakira is a strong kaijudo duelist like Hakuoh. After kidnapping Hakuoh, they turn him into an enemy! Shobu and his friends try to stop them, but will they make it in time? Or will Shobu lose everything and end up devastated!? (Source: DuelMasters.wikia.com)

A magic book places Kazumi in a Wonderland-like world.

When a mysterious creature chops the moon down to a permanent crescent, the students of class 3-E of Kunugigaoka Middle School find themselves confronted with an enormous task: assassinate the creature responsible for the disaster before Earth suffers a similar fate. However, the monster, dubbed Koro-sensei (the indestructible teacher), is able to fly at speeds of up to Mach 20, which he demonstrates freely, leaving any attempt to subdue him in his extraterrestrial dust. Furthermore, the misfits of 3-E soon find that the strange, tentacled beast is more than just indomitable—he is the best teacher they have ever had! Adapted from the humorous hit manga by Yuusei Matsui, Ansatsu Kyoushitsu tells the story of these junior high pupils as they polish their assassination skills and grow in order to stand strong against the oppressive school system, their own life problems, and one day, Koro-sensei. [Written by MAL Rewrite]