Hyakka Mangekyou(2016)

Hyakka Mangekyou

One day, Ruka-- the plain, common, unelegant "Useless Princess"-- meets Juri, a young man from the Royalty Inspection Bureau. A royal's popularity is an important measure proportional to their power over the country. To escape the influence of her popularity, she begins her intensive training with Juri in order to survive the vicious competition of the Royal Idol Era!