Despite what the meaning of her name would suggest, Hana Tabata bears no resemblance to a flower. Her eyes are too small and her limbs are far from slender. She is, in fact, "ugly," and as such, knows that cute things and a fairy-tale romance are out of her reach. Yet this does not stop her from daydreaming every morning as she tends to the school's beautiful flower beds that contrast her appearance. One day, a casual encounter puts Tabata in contact with her classmate, Yousuke Ueno, who is well known for being both handsome and extremely kind. Why would such a popular student associate with a background character like her? To Tabata, it is an unfathomable situation, but can Ueno show her that looks aren't everything?

Two years ago, the death of Naoto Watari's parents left him as the sole caretaker for his younger sister Suzushiro "Suzu" Watari and forced him to move in with their aunt. So devoted is he to Suzu that he refuses to join clubs or even hang out with anyone, earning him snide comments and the title of "siscon" at his new school. But as long as Suzu is safe and happy, Naoto doesn't care what everyone else says. However, his sneering classmates may turn out to be the least of his worries. The sudden transfer of a girl named Satsuki Tachibana brings back traumatic memories from his past—a past she had a hand in making so unpleasant. Nasty secrets, unknown to Naoto, begin to surface with her arrival, threatening his new life.

The Shaderan family has fallen on hard times, and the avaricious and callous baron and baroness will stop at nothing to regain status. They favor their beautiful daughter Anastasia, hoping to marry her into wealth, while they treat the second daughter, Marie, no better than a servant. Years of abuse have convinced Marie that she is truly undeserving of love and attention. On Marie's birthday—used as a ploy to showcase Anastasia—Marie meets Count Kyros Granado, who is immediately charmed by Marie and her knowledge of his culture. Believing Anastasia to be the one he fell for, Kyros proposes via letter. But Anastasia tragically dies on her way to marry him. Forced to take Anastasia's place, Marie becomes Kyros' fiancée, just as he originally intended. Although Marie terribly lacks confidence, Kyros gently helps her find her worth, awakening her to her own beauty and the true meaning of being loved.

Qian Yunxi, the eldest daughter of the prime minister of Guyu Kingdom, has supernatural powers. She has been considered an unlucky person since she was a child and is forced to marry into the Ye Palace. Seeing her sincerity and kindness, the prince Ye Youming uses thousands of tricks to show his kindness. Qian Yunxi thinks that the prince has bad intentions, so she fights with him. A chaotic cohabitation life begins.