The Melancholy of Haruhi Suzumiya (light novel)

When Haruhi Suzumiya introduces herself to Kyon byasking if he's an alien, time traveler, or psychic, he knows his chances for anormal high school experience are ruined. Bold Haruhi takes a shine to him, anduses the force of her irrepressible personality to draft him into her club tofind paranormal beings. Kyon soon discovers what she's looking for: Haruhiherself has the power to destroy and create entire universes at her whim. But ifshe knew about her ability, it could spell disaster foreveryone.