Suzumiya Haruhi no Yuutsu (The Melancholy of Suzumiya Haruhi) is a story about a high-school freshman, Suzumiya Haruhi, and those who are caught up in her antics. On the first day of school, she introduced herself in a bizarre way.

“From East Middle School, Suzumiya Haruhi. I have no interest in ordinary humans. If there are any aliens, time travelers, sliders, or espers here.. come join me. That is all!”

Her classmates wondered whether she was serious or just kidding around. Kyon, a fellow freshman who sits in front of Haruhi, was interested in her because of her strange introduction. Little by little, he tried to talk to her, but Haruhi's answers would always be "Shut up!" "Moron!" "Be quiet!" "Who cares about that!?". However, as the days went by, Kyon becomes the first ever to talk normally with Haruhi and eventually inspired her to form the SOS Brigade which sole purpose is to find aliens, time travelers and espers, and have fun with them.