BerylMamoru

BerylxMamoru, sometimes known as Stalkershipping is a het ship between Queen Beryl and Mamoru Chiba (aka Tuxedo Mask, Prince Endymion, and Moonlight Knight) in the Sailor Moon series.

Canon
In the past life, Beryl seemed to have profound feelings for Prince Endymion. After being reincarnated Queen Beryl abducted Tuxedo Mask and brainwashed him to fight as Prince Endymion for the Dark Kingdom.

He is eventually freed from her control and injured her with a rose forcing her to fuse with Queen Metalia to become Super Beryl who is later slain by Sailor Moon.

Fanon
It is an enemy ship.