Shin Tenchi Muyou!

Tenchi decides to move to Tokyo in order to lead a normal life in the big city. While in Tokyo, Tenchi meets a girl named Sakuya. They soon fall in love, but as it turns out, a dark sinister force has created Sakuya to get at Tenchi and rule the earth. Now Tenchi must balance love, friends, and life while defending the earth one last time.

(Source: Anime News Network)