In San Francisco, Jill Valentine is dealing with a zombie outbreak and a new T-Virus, Leon Kennedy is on the trail of a kidnapped DARPA scientist, and Claire Redfield is investigating a monstrous fish that is killing whales in the bay. Joined by Chris Redfield and Rebecca Chambers, they discover the trail of clues from their separate cases all converge on the same location, Alcatraz Island, where a new evil has taken residence and awaits their arrival.

It is not strange that the Demon Lord's forces fear the Crimson Demons, the clan from which Megumin and Yunyun originate. Even if the Demon Lord's generals attack their village, the Crimson Demons can just easily brush them off with their supreme mastery of advanced and overpowered magic. When Yunyun receives a seemingly serious letter regarding a potential disaster coming to her hometown, she immediately informs Kazuma Satou and the rest of his party. After a series of wacky misunderstandings, it turns out to be a mere prank by her fellow demon who wants to be an author. Even so, Megumin becomes worried about her family and sets out toward the Crimson Demons' village with the gang. There, Kazuma and the others decide to sightsee the wonders of Megumin's birthplace. However, they soon come to realize that the nonsense threat they received might have been more than just a joke.

A virtual world in a scab coral (coral-like information life form) created by Eureka. Ten years have passed since the people of the virtual world appeared on this earth with the collapse. As a result of this “great fusion”, human beings in the virtual world call themselves “Green Earth”, and human beings on the old Earth call themselves “Blue Earth”, and various collisions will be repeated under the surface of the water. And Dewey Novak, a high-ranking official of the Green Earth Army, raises up with his colleagues to protect their dignity and finally puts into action a large-scale terrorist program.

The story begins the day before the graduation ceremony. Five middle school girls each are preoccupied with their real everyday lives. These girls meet each other in a fantasy world after being sent there through a sudden occurrence. There, they learn about the impending crisis that this world is facing. The way to avert this crisis is for the five to collaborate and bring their five hearts together as one through dance. However, the five cannot come to love the world, and cannot tell their true feelings to one another, so their hearts are unable to unite. The time limit is fast approaching. Can the dance of the five girls save the world? And will they be able to graduate?

Kiyotaka Ayanokoji has just enrolled at Tokyo Koudo Ikusei Senior High School, where it's said that 100% of students go on to college or find employment. But he ends up in Class 1-D, which is full of all the school's problem children. What's more, every month, the school awards students points with a cash value of 100,000 yen, and the classes employ a laissez-faire policy in which talking, sleeping, and even sabotage are permitted during class. One month later, Ayanokoji, Horikita, and the students of Class D learn the truth of the system in place within their school...