Talk:私ノ七ツノオ祝イニ (Watashi no Nanatsu no Oiwai ni)/@comment-174.49.245.221-20170405011212/@comment-35327380-20180417152627

Miku is Amaterasu, Gumi is Tsukuyomi.

And I think Amaterasu only realizes she is the younger sister after the stabs herself, on the last moments of her life.