Seishun Haishabocchi Yarou, Kinpatsu Shirigaru Gal no Okiniiri ni Naru

Jun Ichijou is the quintessential loner, a high school student who has perfected the art of solitude. While his classmates chatter through lunch breaks, he buries himself in textbooks, channeling every ounce of effort into climbing the academic ranks. His quiet, predictable routine of studying in isolation is not a burden but a choice—one that brings him a sense of quiet fulfillment, far from the noisy social currents of school life. That carefully constructed peace shatters the day Karen Tachibana, the class’s radiant blonde gal and its undeniable social epicenter, decides he is her ticket to passing grades. With a teasing lilt and an innocent smile that disarms all defenses, she volunteers him as her personal tutor. Thus begins his double existence: a solitary recluse by daylight, and a reluctant, after-school instructor engaged in tense, tête-à-tête study sessions with the school's most popular girl. Though he masks his reluctant cooperation with gruff, tsundere barbs and blunt commands to get through the material quickly, Ichijou reveals a surprising patience beneath his prickly exterior. Karen, in turn, meets his sharp tongue with playful mischief, her genuine, unguarded laughter chipping away at his walls. As they clash and conspire over homework, the air between them grows thick with an intimacy that confuses even themselves. Their bickering rhythms become a shared language, and their quiet study sessions a secret world apart from the bustling hallways. Day by day, the once-invisible loner and the dazzling gal find themselves drawn into a peculiar harmony—so natural and so nauseatingly sweet that it leaves their classmates reaching for sunglasses. In this unlikeliest of partnerships, Ichijou discovers that some lessons extend far beyond the page, and that the greatest distraction might just be the one worth studying most.