In the anime, Kuromi is traveling the world, searching for her missing older sister Romina. Throughout her journey, she gains companions, but also brushes up against evil organizations.

Izumi Sawatari and her younger sister, Mitsuki Sawatari, have run away from home and are in need of employment. The only jobs available are as maids in the mansion of 14-year-old millionaire, Yoshitaka Nakabayashi. What seems like simple work is soon revealed to be far more than the girls bargained for when they find Yoshitaka to be an authoritative employer who demands they call him "Master".

The second season of Shen Lan Qi Yu Wushuang Zhu.

Akane Motomiya and her friends Tenma and Shimon are pulled by a demon into another world, where Akane becomes the Priestess of the Dragon God. The people of this world tell her that she is the only one who can stop the demons from taking over; meanwhile, the demons want to use her power for their own ends. Luckily, Akane has the Hachiyou, eight men with powers of their own who are sworn to protect the Dragon Priestess.