The "SOS団" (SOS Brigade) is a fictional club from the light novel series "The Melancholy of Haruhi Suzumiya," created by Nagaru Tanigawa. The club is formed by the main character, Haruhi Suzumiya, who seeks to find and interact with aliens, time travelers, and espers. The group consists of several members, including Kyon, who serves as the narrator and voice of reason. The SOS Brigade engages in various activities, often leading to humorous and supernatural events. The club's name stands for "Spreading excitement all over the world with Haruhi Suzumiya," reflecting its mission to create thrilling experiences. The series has gained popularity through anime adaptations and manga, contributing to its cultural impact.