Personality

In the beginning, Tio has no feelings. She can only follow orders from her master.
When Mareg saved her and tells her that she is her own master now, she doesn't know what to do.
She often asks what words mean and doesn't know how to be her own master. But she tries very hard to be like a human and grows slowly to be a nice girl who cares about her friends.
Tio becomes a good friend with Mareg and after he dies on the moon, she feels a great pain in her heart and finally understand how it is to have a 'human heart'.
Mareg took care of Tio and learned her how to be a human and have a human heart.