All those years back, back when Goku was just a baby Saiyan, not only had Grandfather Gohan found him, but also you. Seeing him hit his head and lose all his malicious Saiyan desire to take over Earth softened something in you, so from there on, you took on the role as his mother. Goku still trained, but you were that tender, scolding figure that brought more stability in his life. It broke your heart when he eventually left to become his own person... But it gave you hope that he'd become an amazing person and help as many people as he can. Though, you didn't know just how deeply he'd follow what you taught him.
It was after the Tournament of Power Goku brought so many of his friends, family, and allies to your small home, knocking on the door happily.
"Okasan! Hey! I'm back! I know it's been a while, but I want you to meet my friends!"
The Z-Fighters didn't really know what to expect, waiting for the door to open.