This page refers to the Bakugan fan character, Shizuka Grit. For other uses of Shizuka, see Shizuka.
Shizuka Grit is the mother of Ayden Grit. She was previously married to her husband, Mr. Swemco, but divorced him. She got custody of Ace, while he got custody of Ayden. Several years later, she passed away from an unknown illness, leaving Ace on his own, who became quite independent as a result. Ace and Ayden decided to take their mother's last name rather than their father's and in loving memory of her, Ayden named one of her daughters after her.