Onipan!

The main characters are demon children who use the power of the Onipan to turn into humans. They then enroll in an ordinary middle school in order to change how people see demons. After all, in this world humans and demons can coexist peacefully, yet in the girls' opinion people misinterpret what demons are really like. They take an active part in the life of the school and the town, help people with everything and become local celebrities themselves. But are they carrying out their mission the right way, or should they have stayed in the shadows? The girls take part in school events, liven up the town and repair the image of demons in people's eyes.

But is all of this really so fairy-tale and positive? Demons do not have such a negative reputation among humans for nothing. Should people trust these three little girls? How will this story end? Will they manage to change people's opinion of them? Are humans' ideas about the girls' kin really so groundless? How will the girls be able to give up power in the human world and return to their own? Although they live side by side, everyone has their own values and ideals. How much mischief will the girls have to get up to before humanity changes its attitude toward them? Was the task given to these demon girls an easy one?