Haruhi Fujioka, a brilliant scholarship student without social status, inadvertently discovers the extravagant world of the Ouran High School Host Club. After a costly accident involving a pricey vase, Haruhi is roped into serving the club's affluent male hosts to repay her debt. Despite her debt-ridden circumstances, Haruhi's unique charm and relatable background lead to her transformation into a full-fledged host, immersing her in a lavish realm of cosplay, gourmet delicacies, and amusing escapades orchestrated by the club's wealthy and charismatic members.