Before we continue any further, here are the personas Yu Narukami will have besides Izanagi

Mada

Norn

Ishtar

King Frost

Kouryu

Sandalphon

Mahakala

Kaguya

Pyro Jack

Odin

Arahabaki

Sraosha

Asura

Cu Chulainn

Yoshitsune

Isis

Helel

Lucifer

Beelzebub

And a new persona but that will appear later on

And finally

Izanagi no Okami