In Jewel Land, Momona, an ordinary junior-high student, attends her cousin's wedding and initially envies the bride, Lady Diana. However, her feelings shift as she witnesses their connection. Suddenly, Momona finds herself in a snowy realm where Lady Jewel, the ruler, selects Jewel Candidates among the Petit Ladies. With Ruby, a white rabbit, as her companion, Momona competes against rivals like Lillian to become the next Lady Jewel. Amidst challenges, Momona also navigates her growing affection for Cayenne, Lillian's brother. As tensions rise and alliances form, the ultimate question looms: who will claim the title of Lady Jewel, and what will this mean for the relationships entangled in this Jewel Land saga?