Episode Title:
Deadly Sins Unite!.
Episode Description:
Diane fights Zeldris, giving the Gowthers time to stop the Holy War. Having borrowed the Demon King's power, Zeldris seals Diane's power and lets her choose to die or join the Ten Commandments. In the present, Drole narrates the events of the past as they happen, but if Diane dies in the past she can never return. Zeldris talks to Diane of Drole's past as he was alienated from the other giants due to his blue skin, which reminds Diane of how she was similarly an outcast due to her poor outlook on fighting. Diane reawakens in the present, having chosen to run away — something a giant would never do, shocking Drole. Diane then kisses King, as she now has her memories returned to her, and the two confess their feelings for each other. Through each of their journeys, King realizes that he has also grown tiny wings, which Gloxinia assures will grow in size as he matures both mentally and physically. As Gloxinia reunites with his sister, Gerheade shows him Oslow, who the former realizes is Rou reincarnated and has been indeed protecting her all this while. Gloxinia decides to defect from the Ten Commandments and protect the Forest in King's place, allowing the two to reunite with everyone else. Diane promises to return Gowther's lost heart to him, which King Bartra offers, but Gowther runs away in fear. Merlin then shrinks Diane. The Sins chase after him.
