Miyawaki Sakura moves to the university's dorm after her parents were promoted and transferred for work. She is excited that she'll live in the same dorm as the daughter of her father's fellow CEO and campus crush Matsui Jurina, also known as the "White Devil" and the "Red Ace." But what she was excited about the most was that she'll also live with another campus crush who is a candidate to her heart. Her name was Lee Kaeun, the "Black Angel" and the "Black Ace."

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The new nation's group has arrived. Prepare for the crazy battlefield- and I mean it Braincells: I changed the title, the past title was lame /rolls eyes/