Yuu Izumi, a high school student plagued by constant misfortune, finds a ray of hope when he enters a relationship with the charming and devoted Micchon Shikimori. While Shikimori exudes the qualities of the perfect girlfriend—adorable, cute, and deeply enamored with Izumi—she also reveals a surprising and intimidating side as the coolest girlfriend ever. Despite her occasionally daunting demeanor, her unwavering care for Izumi leaves him breathless. As Shikimori's endearing yet fierce presence transforms Izumi's luckless existence, his days are now painted with joy and affection.