MinakoAce

MinakoxAce is a het ship between Minako Aino (aka Sailor V and Sailor Venus) and Ace Saijyo (aka Phantom Ace, Adonis, and Danburite) in the Sailor Moon series.

Canon
In their past lives Adonis had feeling for Sailor Ventus but did not approach her since she had feeling for Kunzite (manga-wise anyway).

He is reborn as Danburite who disguised himself as Ace. But he is eventually killed off.

Fanon
It is a less popular shipping, mostly because most Sailor Moon fans have no idea who Ace is.