Looking for an Anime with Soul Mates type story

I've seen a few Anime that have had couples ending up being soul mates at the end of the series type thing. Anime I've seen like this



Kidou Senkan Nadesico ( Loved the ending )



Crescent Love



Vandread



Urusei Yatsura



El Hazard



I've been liking Anime that have Sci fi type elements but romance between a male and female. Loving shows that start out like harems but end up having an actual couple at the end of the series. Mostly like teens into the mix as the main characters that'd be a bonus for me :D



If any one can help me with this, I've been looking for more Anime like this but am having a hard time :(



Thank you.

Looking for an Anime with Soul Mates type story