MamoUsa

UsagixMamoruis the het ship between Usagi Tsukino and Mamoru Chiba from the Sailor Moon fandom.

Canon
At some point in the distant past Princess Serenity and Prince Endymion fell in love. But this caused a war between the Earth and the Moon causing the destruction of the Moon Kingdom. They are reborn in the present as Usagi Tsukino and Mamoru Chiba. They don't get along at first but soon fall in love again.

Mamaru took on the identity of Tuxedo Mask looking for the Silver Crystal for keys to his past since he lost his memories in a car crash. Usagi was awakened by Luna as Sailor Moon to fight the Dark Kingdom. As time went on they learned that Usagi was the princess. He is captured by Queen Beryl who ruled the Dark Kingdom and turned against Sailor Moon with a spell but Sailor Moon saves him and returns him to normal. They are 'killed' in their last battle with the Dark Kingdom but return to life with no memories of their adventures.

Usagi's memories are returned and is upset that Mamoru does not remember her. Part of Mamoru did split off to become the Moonlight Knight to aid Sailor Moon. In their last battle with the Makaiju the Moonlight Knight is defeated and returns to Mamoru causing his memories to come back.

Black Moon Arc is starts having dreams that if he stays with Usagi she would die. Because of this breaks up with her, but stills aids her in battle as Tuxedo Mask. This causes her to become depressed and even suspected that Chibiusa was the cause of the breakup. They eventually do get back together. It is later revealed that it was his future self that sent the dream to test their bonds.

Mamoru does show some jealously when Seiya showed affections for Usagi.

Fanon
It is among the most popular shippings. The relationship between Usagi and Mamoru was a major plot point for the series causing there to be many fans. It mostly rivals UsagixSeiya.

Fandom
FAN FICTION