Cosplayer, Energetic, Fast Learner, Independent, Strong Willed, Cheerful, Trouble Maker
A reality-blender, Haruhi has the power to change, destroy, and reshape reality. Eccentric and anti-social, with no interest in "ordinary" humans, it is fortunate that she is not aware of her powers, or she could erase the world and reshape it if she got too bored with it.
She founded the SOS Brigade with the purpose of finding aliens, time travelers and espers, in order to have fun with them. Although she doesn't know it, all the members of the SOS Brigade she recruits, besides Kyon, happen to fit into these groups
However, she has a counterpart - Sasaki, whom some of the espers believe is the true god instead, and that Haruhi was a mistake. A plan was initialed to transfer Haruhi's powers to Sasaki, without her knowledge, and render Haruhi unable to use her reality-bending powers.
Haruhi and friends were then captured by the Yakuza hired for this purpose, the Sumiyoshi-rengo, and sold into slavery.