Suzie

Suzie lost her dad in an attack of some infected Asobots did to her city. When she was young, her father was telling her the legend, which leads her to join Goku and his friends to witness it. Although she doesn't have any abilities, she has a flying vehicle. Later she finds a bow which can produce a sound which affects asobots. Only Suzie can use it. At the last part of the series, Suzie is the last person who finished Professor D. by using the bow of sun to rest Professor D.'s soul in peace. It is because she is the only one who understands what Professor D. feels. In the end, she, along with the gang, choose to go back with Goku in the past.

(Source: Wikipedia)