Megumi Ooumi is a 14-year-old pop sensation who also serves as The Keeper Of The Book to Tio, a 6-year-old Mamono. Despite her fame from video games and concerts, she remains an ordinary girl at heart.
With a kind and compassionate personality, Megumi views Tio as a younger sister. She often soothes Tio's outbursts and helps her understand the world around them. Their bond began when Megumi found Tio injured by the docks. Initially, Tio was distant and warned Megumi that helping her would only bring harm due to her battles with other Mamono. However, over time, they grew closer, and Tio started to trust Megumi.
After receiving assistance from Gash and Kiyo, Megumi regarded them as friends, just like Tio, and pledged to return the favor someday. When Clear Note returned to the Mamono World, Megumi visited Gash and Kiyo with a look of loneliness, missing Tio greatly.
A month after the battle to determine the Mamono King concluded—with Tio finishing in fifth place—Megumi received a letter from Tio. As she read it, tears welled up in her eyes.
(Source: Wikipedia, Zatch Bell! Wiki, edited)
