因为喜欢上了完美的风纪委员学姐水鸟亚鸟，本性是好孩子的优谷优故意打扮成了不良少女的模样。然而，天生不会装不良的优被亚鸟当成了可爱的小狗。

Noa’s past life as a young adult villager was nothing to write home about. But now he’s reborn as the 13th prince of an empire! His stats screen reveal that he’ll grow stronger proportionately to the number of people serving under him. To gain ultimate power, he’ll do whatever it takes to make sure that those who serve him shall serve him for life!

Kaya-chan attends Hanamugi Kindergarten, and she has an incredibly strong sixth sense. She secretly beats up the ghosts that stalk her friends and family, but in turn, she’s treated like a troublemaker since nobody understands her strange behavior. Everything changes when her teacher, Chie, discovers her secret. Kaya-chan's fists will go flying at any sinister spirits that show up!

At heart, Yuu Yuutani is a total goody-two-shoes and only has eyes for the school's Madonna, Atori Mizutori. To get the attention of Atori, Yuu gives up the honor roll to become a bad girl! Too bad this very good girl isn't very good at being bad!