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 as Usagi Tsukino and Mamoru Chiba. They don't get along at first but soon fall in love again.

Fanon
It is among the most popular shippings.

Fandom
AO3