Find aliens, futurists, and ghosts and play with them.
The full name of SOS team
Sekai wo Ooini Mori Ageru tameno Suzuki Haruhi no Dan Sekai: the world, ooini: more, Suzuki: Haruhi, SOS take the first letter of these three words, which means: Haruhi Spring Festival group that makes the world more lively.
SOS mission purpose: