“I demand absolute obedience from you.” Yu Akabane has worked hard to reinvent herself for high school, and there’s only one step left in her plan to leave her plain Jane days behind: asking out her idol, the “White Prince” Shirakawa-kun. When circumstances lead to Yu moving into the school dorm where Shirakawa-kun boards, she thinks she’s found her lucky break. But unluckily for Yu, “Black Devil” Kurosaki-kun, the boy everyone at school (including the teachers!) is afraid of, lives there too—and when Yu defies him, he’s all too eager to punish her…

“Maybe I should order you to do something humiliating...” Yu Akabane made a deal with the devil—“Black Devil” Kurosaki-kun, the most feared boy at school—and lost. Now she’s supposed to do anything he asks, and he’s not taking it easy on her. In the dorms, during a power outage... In the middle of her date with her crush, the dreamy White Prince... The Black Devil’s demands keep on coming! Can Yu manage to find a definitive way out of this deal? And problematically, does she actually want to...?

“I will never belong to you, Black Devil!” By cutting off her own hair, Yu cuts off her involvement with Kurosaki-kun in no uncertain terms too. Now that they’re even, Yu thinks she can relax and get closer to Shirakawa-kun in peace. But having nothing to do with someone is easier said than done when you live in the same dorm! It’s summer vacation, and be it on top of a bed, on the roof, or in the lounge, Kurosaki-kun’s cruel behavior just won’t stop… It’s a twenty-four seven, heart-pounding romance with the increasingly dominating and devilish Kurosaki-kun.

“Yu-chan. Want to come to my family’s summer home?” Yu is Shirakawa-kun’s girlfriend now, and he’s even invited her on a special trip. A boyfriend asking his girlfriend on an overnight trip can only mean one thing…right? But even at Shirakawa-kun’s summer home, Yu keeps running into Kurosaki-kun in the most embarrassing situations that leave her heart pounding! Could it be that she actually wants to obey Kurosaki-kun? Plus, a special bonus story starring Kaji-kun!

“I want to figure out if this is love.” The summer trip’s whirlwind of events has left Yu in a daze, with barely any summer vacation left. But it’s not over yet, and she’s eager to move on and find a new love while the Black and White Princes remain at the summer home! When Yu gets an invitation to a middle school reunion, could she find the romance she wants where she least expects it?

“Don’t go into heat, Fido.” When Kurosaki-kun takes Yu out on the town one Saturday, she seizes on the trip as an opportunity for a test drive date. All Yu wanted was some innocent fun… So how does she end up freaking out in a hotel room, with the Black Devil fresh out of the bath, and only one bed for the night?! Plus, a special bonus story starring the White Prince back in middle school!

Yu’s sure of it now—she has feelings for Kurosaki-kun. Problem is, that makes her rivals in romance with her best friend! For the sake of her friendship with Meiko, Yu makes up her mind to keep her feelings under wraps…but between Meiko wanting to sneak into Kurosaki-kun’s room, and the schoolwide preparations for an upcoming culture festival putting pretty much everyone in a romantic mood, that might be easier said than done!

“The deputy dorm leader’s orders are absolute. If you don’t like it, you can leave.” When Shirakawa-kun abruptly leaves the dorm without explanation, the dorm students are left to suffer under Kurosaki-kun’s reign of terror in his absence! Yu just wants the two friends to go back to normal, but the boys may have to work this one out for themselves—after all, the roots of their rivalry go back long before she was in the picture. And before things can settle down, the big culture fest bonanza begins!

The ever-commanding Kurosaki-kun has ordered Yu to compete with him in the big culture festival couples contest… in a fake relationship, to fill in for the original contestants. Now Yu has to play the part of the school idol’s girlfriend in front of a huge crowd—but maybe that was the push she needed, because an intimate moment backstage spurs her on, she turns the tables on him by asking him out, for real! Could she finally become his girlfriend?! Before she can get a definitive answer, however, she’s going to have to survive getting lost in a blizzard…! Plus, a bonus story covering Kaji-kun’s side of the culture fest!

“I’ll go out with you. I’m keeping you under my supervision until you learn to obey me.” On the night of the skiing trip, Yu and Kurosaki-kun became boyfriend and girlfriend! The more time the new couple get to spend together over the upcoming holidays, the better—or so Yu thought, but the last thing she expected was to spend that time at Kurosaki-kun’s house! Not only is his house larger than Yu ever imagined, his dad is larger-than-life, too… With double the devils, this is bound to be a winter break to remember!

Yu and Kurosaki-kun have started going out—on the condition that she “learns to obey him.” Brought down by her new boyfriend’s no-holds-barred training, Yu is, for once, doing as she’s told. When she stops clashing with Kurosaki-kun, she sees a new side of him, and just in time for their first Valentine’s Day to arrive. Yu is nervous, but come on, even crabby Kurosaki-kun has to accept chocolate from his girlfriend! If she can force her way through the crowds of the princes’ admirers to get it to him, anyway… Will Yu’s Valentine’s Day turn out to be sweet, or bitter? Plus, a new school year will be bringing changes to the dorm, too…

At long last, Yu can feel her relationship with Kurosaki-kun making some real progress after their Valentine’s Day connection—but she’s well aware that she and her bossy boyfriend are still far from on the same page, feelings-wise. Just as Yu psyches herself up to conclusively turn Kurosaki-kun’s head her way, the precarious pair is split up in the new school year’s class change! Even more worrying, the new transfer student—who happens to also be the prettiest girl in their grade year—has her sights set on Kurosaki-kun, and she’s willing to push much harder than the Black Prince’s usual fangirls. But Yu’s biggest surprise might come from Kurosaki-kun himself. Does the notorious Black Devil have a sweet side…?!

While Kurosaki-kun’s junior, Hino-kun, works from the shadows to isolate the now-popular prince from his friends and admirers, Yu remains blissfully unaware. The biggest thing on her mind is how far to take her relationship with her boyfriend! These days, the (former?) Black Devil seems sweeter and sweeter to her—and she doesn’t know how to handle it! She wants to connect on a deeper level, but when she and Kurosaki-kun end up in a fight instead, could it be that the unlikely couple is simply incompatible? But in the background, Hino-kun’s plans continue to escalate… Includes a bonus story starring Mina!

The secret is after their public kiss (doubling as an official relationship announcement!), the entire school finally knows Yu and Kurosaki-kun are dating. Yu is totally fired up to fend off any trouble that comes her way as a result, but her training is interrupted by Kurosaki-kun himself with an invitation to the summer festival. The date-like atmosphere prompts Yu to hope once again that Kurosaki-kun's feelings for her have changed from devilish dominance to real-life love. Before Yu can find out, though, she'll have to make it through the biggest predicament of her life...

In an accident at the summer festival, Yu lost her memories of high school, including her entire relationship with Kurosaki-kun. When Kurosaki-kune worriedly joins the amnesiac her on her summer visit with her parents anyway, Yu finds herself more and more curious... and her attempts to talk to him somehow culminate in a risqué encounter! Not one to be outdone, Shirakawa-kun whisks Yu away behind Kurosaki-kun's back. The two princes' showdown over Yu hurtles toward its finale. Will their friendship survive?

Yu's memories are back and her feelings for Kurosaki-kun are stronger than ever. Next thing she knows, a lingering hug turns into an invitation to bed from her boyfriend! But is Yu really ready to take their relationship to the next step? With Kurosaki-kun's devil of an older brother Sakura also meddling, and Yu's own desire to make her boyfriend happy, she knows she needs to make up her mind...

With exams safely behind them, Yu, Kurosaki-kun, and their friends are off on the class trip to Canada! On the plane, at Niagara Falls, a night out in Toronto... Kurosaki-kun's devilish teasing has gone global! When they meet his older brother Sakura's girlfriend, though, Yu can't help but notice how gentle her normally gruff boyfriend acts toward her. He might be having fun with this, but Yu's not about to let her man fall for any other woman!

"I love you." Yu is caught by surprise when Kurosaki-kun says those three magic words on a night out in Toronto. She's so happy she thinks she must be dreaming... Luckily, this is her new heavenly reality, one bound to make the rest of the class trip that much more exciting! But dating the Black Devil was never easy, and Yu's taste of bliss might be cut short by a new complication...

For Kurosaki-kun, Canada is more than just a fun class trip. The experience has inspired him not only to make some big plans for his future, but to waste no time setting those plans into motion. Yu, on the other hand, hasn't thought that far ahead. So when Kurosaki-kun asks Yu to study abroad with him, she's caught completely unprepared! That audaciousness is exactly what Yu loves about her boyfriend, and she doesn't want to be apart any more than he does. Still, it's a choice that will set the course of her own life. What will Yu ultimately decide?