My Grumpy Cousin Is Too Cute

Haruki Togami has always cherished his younger cousin, Naoki Koga. Five years his junior, Naoki was inseparable from Haruki during childhood, but time has transformed the once-adorable crybaby into a prickly eighteen-year-old high schooler. Haruki struggles to navigate their evolving dynamic; although Naoki constantly wears a grumpy and thorny exterior, Haruki still catches glimpses of the soft, endearing boy he remembers. Yet, any attempt to point out this hidden sweetness only provokes further irritation. Everything shifts one evening when Naoki unexpectedly walks in on a compromising scene between Haruki and his boss, Jin Fujioka. Shortly after, Naoki abruptly declares that he will be moving into Haruki’s home, leaving his true motives shrouded in mystery. Is he genuinely trying to protect his beloved cousin, or is something else driving this sudden decision? Meanwhile, Jin Fujioka—an infamous playboy known for his dominant nature—experiences an entirely different kind of collision. He literally crashes into a young man named Nachi Konno. Hoping to make amends and perhaps enjoy a lucky encounter, Jin invites Nachi to spend the night at his apartment. However, Jin quickly discovers that his assumptions are far off the mark, leading to a surprising miscalculation he never saw coming.