Kaibutsu Oujo S01E25 - Princess Delinquent

Flandre acts strangely and goes on a rampage, repeatedly attacking Hiro. Hime catches attention of this and contacts Sherwood about it. While the two analyze Flandre's data in the laboratory, Hiro and Riza try to follow Flandre from the pass to the shopping district. Although it is a wild goose chase for them, she is thought to have saved many people in the city. Finally catching up to them at a power plant, Hime tells Hiro and Riza that Flandre will self-destruct soon, and Sherwood sends Francisca to battle Flandre, but to no use. Flandre heads into the ocean, but as it seems that she has self-destructed, Emile briefly appears with his android Flanders and tightens the loose screw on Flandre's head, being the reason for her misbehavior.