Shiroi Ōtsutsuki

Shiroi Ōtsutsuki is Shun Ōtsutsuki's mother the reason for Shun's grimness since she dies.

Appearance
Shiori was an extremely beautiful woman, who had long black hair and green eyes. She wore a pink long-sleeved hemp and a long white skirt. When she is young, Shiroi wore a yellow shirt under a pink dress and her hair was short. Her hair is a lighter shade.

Personality
Shiori seems to have been a very caring and loving mother. She loved Shun and would nag him to go have fun with Dan and his other friends and not to worry about her. Shiori wanted only the best for Shun and just wanted him to do what he wants to do, not what his grandfather wanted him to become (a ninja champion). Shiori also seemed to occasionally want to spoil Shun as he states that she doesn't need to do anything for him, but Shiori insists on spoiling him, giving him Skyress before succumbing to her death. Shiori was portrayed as selfless and very caring. Her biggest concern was Shun's happiness.

When she is young, Shiroi is hyperactive and loves to watch the sun, as she admits to Raimei Ōtsutsuki as an adult. She was also very bubbly and talkative. All this Shiori really wanted was a companion to share her joys with, which is why she wanted to play Bakugan with Raimei.