The Melancholy of Haruhi Suzumiya anime television series first airs in Japan, gaining considerable popularity.
The DVD compilation of the anime series is released, boosting the series' popularity.
The Melancholy of Haruhi Suzumiya second season (2009) anime airs, continuing the story from the original series.
Kyon, the protagonist, first meets the eccentric and energetic Haruhi Suzumiya, sparking the formation of the SOS Brigade.
Haruhi forms the SOS Brigade, a club dedicated to finding aliens, time travelers, and espers, recruiting Kyon and other members.
Mikuru, a time traveler, is recruited into the SOS Brigade by Haruhi.
Yuki Nagato, an alien interface, joins the SOS Brigade discreetly as a quiet, book-reading member.
Itsuki Koizumi, an esper, becomes a member of the SOS Brigade, adding to the supernatural presence within the club.
Haruhi unknowingly causes reality changes due to her subconscious powers, which Kyon helps to stabilize.
The SOS Brigade and Kyon experience a time loop repeating the last two weeks of summer break endlessly due to Haruhi's unconscious powers.
Mikuru momentarily disappears and leaves mysterious clues related to her time traveler abilities.
The SOS Brigade confronts Yuki's original form, a hostile interface named Asakura, leading to a dangerous scenario being resolved.
Haruhi becomes partly aware of her reality-bending abilities and the consequences they bring.
