Ep 17. Dilemma

Ai's parents are going to have their wedding ceremony, and Haruka is going to attend it, but she is stopped by Kosagi, who came to finish off what she had started before. It's a futuristic inter-dimensional struggle of good versus evil with the highest of stakes: total annihilation of all space-time. Two friends in the present must now help freedom fighters from the future battle the evil dimension Shangri-La. With the help of a group known as the Dragon Calvary, Haruka and Yuu travel through space and time to save the universe from eminent destruction. Must see anime at its finest.