1x6 - The Melancholy of Haruhi Suzumiya

One night, Haruhi's power is inadvertantly activated, trapping her and Kyon in a sealed reality at their school. While Haruhi investigates, Kyon is greeted by Itsuki, who tells him that Haruhi is creating a new world, retaining only Kyon from the old one. Yuki contacts Kyon via computer and gives the hint of Sleeping Beauty as a means to stop Haruhi. As blue giants appear and begin to destroy the school and surrounding area, Kyon kisses Haruhi, returning them both to the old world. Haruhi believes the whole experience to have been a nightmare, but puts her hair in a ponytail in accordance with a wish Kyon expressed in the sealed reality.