It is spring. Kosaki’s little sister, Haru, is now a first-year at Bonyari High School, and she’s bursting with anticipation over her new life. But on her very first day, she finds herself in a huge predicament – surrounded by delinquents!
The last thing Haru sees just before she passes out from terror, is a boy wearing the uniform of her own school, Bonyari High, coming to her defense. Haru believes that this was a fateful encounter – with a “prince” whose face she never saw, and whose name she doesn’t know. But aside from the prince, there’s another boy she has to find, no matter what…?