Well if you didn't know it before your gonna know it now, Mamoru(Darian) is Usagi's (Serena's) boy toy, and also the mysterious male Senshi (scout) Tuxedo Kamen (Mask). In the first Series we find out he was orphaned as a child and has no memoris of his Past (bummer no wonder he likes being Tuxxey so much). Making a long story short he finds out he's Tuxedo Kamen (Mask),the former prince of Earth, and that he and Usagi used to be lovers. Of course the flame is rekindled and after a while the romance begins anew. *Le Sigh* How pertiful. Anyways IN the Sailor Moon R Movie we find out he was friends with a little Alien boy (who looks alot like Ali) and it's suggested (by thousands of people) that there was a little something more with that relationship. Regardless of the fact he is a Senshi (Scout) and former Prince Endymion (Darien) and future King Endymion. He and Usagi (Serena) have a daughter in the distant future named Chibiusa (Reni). For some reason he retained his princely ways from his past life, I myself believe this is the cause of that stupid accident and he's really as bubble brained as Usagi (Serena).