Enrolling in high school, a boy known only as Kyon is baffled by his classmate Haruhi Suzumiya, who introduces herself by saying she wants to meet time-travelers, aliens, and espers. While striking up conversation with Haruhi, Kyon inadvertently gives her the idea of forming her own club, which she names the SOS Brigade. With Kyon forced to be her first member, Haruhi recruits Yuki Nagato, the sole member of the Literature Club that they liberate the clubroom from, along with the timid Mikuru Asahina.