User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-196.213.52.66-20190923080225/@comment-155.93.250.141-20190927053639

Well Grandpiece, the Pendragon Maid is Elaine Westcott, she and Arthur are in love, but Arthur left the Pendragon household to protect her from punishments. Here's more info

https://highschooldxd.fandom.com/wiki/Other_Characters/Humans#Elaine_Westcott