Mamoru...one of many names, but (almost) always a friend of the sailor senshi. He is Tuxedo Kamen, Tsukikage no Knight, and Endymion. Not to mention his earthly name of Mamoru. As Tuxedo Kamen in Sailor Moon, he attacks with a red rose, a cane and his intelligence. All of the scouts have a crush on him. Then, near the end, they find out that he is Mamoru and Prince Endymion from the time of the Moon Kingdom, and that Usagi (Serena), known then as Princess Serenity, was the one he loved. Due to this knowledge, everyone (especially Rei, who dated him) backs off from the love side of things, for Usagi. In the first part of Sailor Moon R, during the Doom Tree series, he doesn't know of any of these facts except that he is Mamoru; he lost all of his memory at the end of Sailor Moon. His soul continues to fight, however, as Tsukikage no Knight, using a white rose instead of a red one.

He then, of course, regains his memory at the end of the Doom Tree series. Tuxedo Kamen has returned!!! And Usagi has a boyfriend...but not for long...

Poor Mamoru!! In the last season we barely see him. He is supposed to be studying in America at a university. But Sailor Galaxia got to him first. Well, they do say that plane flights are dangerous....too bad it wasn't something he could have defended against though. Usagi gets very depressed when he doesn't return her letters. She gets even more depressed near the end of the series when she finds out what truly happened to him; although I would say she is a bit relieved to know that he had not forsaken her.

Love Life: Well, it has basically been outlined above. Before he remembered his past and realized that he was Tuxedo Kamen, he was dating Rei. Then he remembers his love with Usagi, and they are eventually together (No, Queen Beryl doesn't count since she brainwashed him). In the Sailor Moon R movie the villian seems to be in love with Mamoru, as well (yes, it's a guy). And of course, everyone was in love with Tuxedo Mask before his identity was known. ^_- However, once he remembers his past, he is always true to Usagi unless he's been brainwashed.