Marmalade Boy is a classic shoujo romance that follows Miki Koishikawa, a cheerful high school girl whose ordinary life is turned upside down when her parents suddenly swap partners with another couple and decide to live together, forcing her to share a home with the cool and unpredictable Yuu Matsuura. As Miki navigates school life, friendships, and a tangled web of crushes, the story explores young love shaped by confusion, jealousy, and emotional growth, gradually revealing deeper insecurities beneath its bright surface. The emotional depth comes from its portrayal of adolescence, trust, and self-discovery, balancing lighthearted romance with moments of genuine vulnerability. Blending school romance, drama, and slice of life, Marmalade Boy became a defining title of 1990s shoujo manga, achieving massive popularity through its anime adaptation and live-action film, and leaving a lasting cultural impact on romance storytelling in anime and manga. Also known as Marmalade Boy manga, ママレード・ボーイ, Miki Koishikawa, Yuu Matsuura, Wataru Yoshizumi, shoujo romance anime, school love drama, 90s anime romance, Marmalade Boy anime.