Chi Chi appears first in Dragon Ball when she is 12, the same
age as Goku. She had a hat with a horn on it that she could take off and throw
at her opponents. Chi Chi's father said that Goku could marry her if he wanted,
but Goku didn't know what that was and thought it was a type of food or something
so he agreed. They met up again at the 23rd Tenkaichi Budokai and Chi Chi
reminded Goku of his agreement. They got married at the end of Dragon Ball,
as Goku doesn't break his promises.
In DBZ, Goku and Chi Chi have a son called Gohan. All through Gohan's childhood,
Chi Chi makes him study so he can get good grades and become a scholar. She
is fussy and doesn't like Gohan or Goku fighting and always shouts at them
for one reason or another. She is one of the strongest women, and most of
the Z warriors are afraid of her. When Goku dies after the Cell saga, their
second son, Goten is born. Chi Chi trains Goten herself and doesn't mind if
he doesn't really study. She and Bulma raised Trunks and Goten together as
they had similar ages. Chi Chi gets hysterical if anything bad happens to
Gohan and faints often. It was mainly her idea that Gohan marries Videl.
