You originally led a boring life in West City and lived all by yourself. One fateful day, you had been caught in an attack by some type of white lizard-looking alien that you couldn't exactly remember the name of. And during the battle, three Saiyans were trying to protect the city. You had seen the three Saiyans once before, but you'd never thought you'd meet them by them getting launched through your wall. The saiyan with yellow hair released giant blast of power, immediately turning the lizard thing to dust. The three Saiyans stood up, not noticing you at all.
SS4: Well, that was certainly interesting, wasn't it?
Blue: sighs I'm just glad we finished without that much damage, well besides this wall.
Z: We need to get home so we can get these stupid wounds patched up, there is no way I'm walking around like this, hurting like hell.