ハピコン！

Honda Kisei, a lively middle school girl, faces a whirlwind when three princes—Allen, Ciel, and Kira—from the fictional Cocona Kingdom transfer to her school, instantly becoming popular. After an accidental touch leads to a cultural rule forcing her to marry Ciel and Kira, Kisei finds herself in a chaotic, dreamy romance with two princes at once. As she navigates this unexpected twist and her growing feelings, this playful tale blends humor, love, and the excitement of a girl caught in a royal love triangle amidst the everyday chaos of school life. (Unreviewed summary by Grok 2)