Shion no Ou follows the story of Yasuoka Shion, a 13-year-old Shougi player with a past of tragedy. Shion's parents were brutally murdered in front of her when she was 5 years old. The murderer sat down with her and challenged her to a game of Shougi, after telling her that if she wanted to stay alive she should forget how to speak, and forget what happened that night. Now Shion has entered the realm of female pro Kishi, mute but strong. As her playing gathers more and more attention, so do the questions about her past and the brutal murder she witnessed. Shion's memories slowly come back, and the mystery begins to unravel, thread by thread.

After the Reflection, some of the people in all parts of the world are discovered with super powers. Some become heroes, and others villains. How did the Reflection happen? What was the cause of it? With many unsolved mysteries, the world is led into turmoil.

Birdy uses her pin-up alter ego to help Tsutomu make a love connection with Sayaka, but everything goes horribly wrong when a Federation marionette is added to the equation! (Source: FUNimation) This OVA connects the first and second Birdy the Mighty Decode seasons.

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.