Raiden Mei: "A foolish question..."
Indeed, the person who appeared behind Aether and held a blade to his neck was none other than Raiden Mei, having unleashed her power as the Herrscher of Thunder.
Originally, Raiden Mei had only agreed to a simple arrangement: Kiana wanted to make a guest appearance here as a fun little cameo, and they just needed to seal the twins away for a bit.
Chapter 471