Super deformed parody shorts of Overlord III streamed on Kadokawa's official YouTube channel.

OVA bundled with the special edition of the manga's side story.

Based on the American cartoon, The Powerpuff Girls. Professor Utonium and his son Ken are studying the strange Chemical X. When a mochi cake falls into the formula, it changes into Chemical Z. Ken fires a ray of Chemical Z at a glacier in Tokyo Bay, however that causes strange black and white lights to scatter. The black lights turn its victims into monsters, with emphasis on a black light hitting a zoo monkey and transforming him into Mojo Jojo. The white lights, however, aim at three normal girls, Momoko, Miyako, and Kaoru. This gives them the power to transform into superheroes, the Powerpuff Girls Z!

Set in modern day London, the story takes place in a world where Shadows are born from human fear and anxiety. A young girl arrives to study abroad, only to be caught in a bizarre incident as she enters university. In a city with no acquaintances, the helpless girl wanders into Café Forbidden, a mysterious café that exclusively opens at midnight. She meets an assortment of handsome men employed at the café, where guardians who protect the boundary between humans and shadow convene. (Source: MAL News)