Second season of Monster Strike, animated entirely in CG. A transfer student from America, Mana Livingston, becomes friends with the main cast and learns about the Monster Strike game, even obtaining her own ring and partner. Together everyone helps solve crises involving the energy points that draw monsters in random areas of Japan. By sealing them the monsters will stop being drawn to them. But Madarame, a CEO who reaches out to the children, is not telling them the whole truth.

The Angelic Guard, who call the heavens their home, have been tasked with collecting the orbs scattered across the world. Lucifer—a leader of the Angelic Guard with a rebellious streak, said to wield power rivaling the Almighty—carries out her duty along with Uriel, also a leader of the guard. Together, they go about executing their mission, until Holy Magistrate Keter—the one who leads the heavens under the Almighty's will—tells Uriel of Lucifer's planned rebellion. Initially in disbelief, Uriel then learns that the accusations against Lucifer may be connected to an event that once threatened to shatter the heavens.

An original story included with volume 10 of the Nakanohito Genome [Jikkyouchuu] manga.