User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-35679297-20190930005417/@comment-196.213.52.66-20190930064650

The Heavenly Breast are supposedly Issei's first 12 brides are well as the core members of the group that will aid him in saving the world. aS YOU mentioned he is currently engaged to 8 of them, but he unknowlingly has all of them

He is engaged to :

Rias

Akeno

Asia

Xenovia

Irinia

Rossweisse

Koneko/Shirone

Kuroka

He also has :

Elemenhilde

Ravel

Le Fay

Ingvild

Le Fay will most likely get engaged to Issei in her volume, same for Ravel and Elmenhilde, Ingvild however, will need more development in her relationship with Issei