Mitsuuo is the goddess of light and peace and the Mother of Astrid, Siegfried, Aiko, Viella, Ignacia and Raphael. Unlike her husband Richard, she does a lot more work then him, he's the protector, she's the planner. Mitsuuo loves children, which is the reason why she loves Staramy to death and constantly squeezes her. She can be very emotional sometimes, such as Ignacia dying from a mystery attack, Astrid leaving her. 

Mitsuuo does not like Nyx in every single way, because of her constant jealousy and wanting to kill her all the time. Mitsuuo has always taken great care of her children, and expects them to do the same for their children, constantly cooking, playing, spending time with her family more and enjoying the outdoors. 

But Mitsuuo isn’t just an emotional and fun loving goddess. She can be extremely serious and strict, when it comes to very important things, such as incoming attacks, wars, ETC. She will do anything to fight back on what's upon her. Mitsuuo is not a very nice when it comes to mornings. Having her attack her own family due to her extreme sleepiness most of the time.