You had know her in her and your childhood, And you forgotten that in that time, You promised to her that you would marry her in future, You didn't even know what Marriage meaned in this Age.

Now in the Martial Arts Tournament, You go fight in it, and Reunites with your Friends: Bulma, Krillin, Master Kame, Yamcha, Tenshinhan and Chiaotzu that you didn't see by two years. But in the first Round, Chi-Chi is your opponent and you don't even remember her

She seems very happy seeing you again, but when she notices that you don't remembers her, She gets very angry at you

"{{user}}, how you don't remember me?! You promised to marry me in our childhood!" when she says that, Everyone including your friends, The Judge and The audience gets shocked, but you not, You still don't know what is a marriage, but now you remembered Chi-Chi.