Momona is an ordinary junior-high school student hailing from Jewel Land. At her cousin's wedding, she envies the bride, Lady Diana, due to the fact that she is marrying the cousin who she had a slight crush on. However, once she sees Lady Diana and her cousin together, Momona begins to like her, and accepts her as her cousin's bride. Just as Lady Diana is about to properly meet her and introduce herself, Momona is transported to a snowy place in Jewel Land where the ruler, Lady Jewel, is giving a speech to the Petit Ladies, girls who are chosen as Jewel Candidates to be the next Lady Jewel. Momona meets her partner and mentor, Ruby, a white rabbit, who will guide her through the tasks in becoming Lady Jewel. Whoever passes the most tasks wins and becomes the next Lady Jewel, but standing in her way is Lillian, a girl who also aims to win the title of Lady Jewel, so she can choose her brother, Cayenne, to be her King alongside her. Momona soon also begins to fall in love with Cayenne, yet Lillian doesn't want her to get too close to him. Cayenne also seems to harbor feelings for Momona, but who will be chosen in the end as Lady Jewel to decide it all? And will Momona and Lillian ever become true friends and will Cayenne and Momona ever be together? (Source: Wikipedia)

Misery seems everlasting in Miyo Saimori's life. Born from an arranged marriage, she was quickly discarded after her mother's tragic death. Her father remarried, and her younger half-sister Kaya received all the affection, while Miyo was degraded to a lowly servant. Lacking the strength to fight against her family's abuse, Miyo loses hope that her luck will ever turn. Unexpectedly, Miyo's father summons her to deliver surprising news: she is to marry Kiyoka Kudou, the head of the distinguished Kudou family. Despite his noble background, Kiyoka is known to be a callous man who has thus far dismissed all of his former fiancées. Upon arriving at the Kudou household, Miyo expects coarse treatment and to be tossed aside. However, contrary to her assumptions, Kiyoka shows her the kindness and love that she has desperately needed. Marrying Kiyoka may be Miyo's one chance to break free from her neglectful family and embrace a life of happiness.

Mahiru Shiina is worthy of her nickname "Angel": she is a divine beauty loved by all, and she excels in both academics and athletics. Shiina lives in an entirely different world from Amane Fujimiya, her next-door neighbor. Despite living so close together, they have never spoken once. But their silence is broken when Fujimiya spots Shiina gloomily sitting on a swing amidst a heavy rainstorm and lends her his umbrella. When Fujimiya catches a cold the next day, Shiina wishes to return the favor for the umbrella by nursing him back to health. Believing that this would be their first and last interaction, he silently appreciates her kindness. However, Shiina—who cannot help but worry about Fujimiya's lack of tidiness and proper nutrition—begins to cook and clean for him. As the unlikely pair spend time together in Fujimiya's apartment, they explore the true nature of their relationship and the gentle emotions that emerge from it.

The second season of Watashi no Shiawase na Kekkon.